diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 000000000..ed8f4a432
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,9 @@
+version: 2
+
+updates:
+
+  # Keep dependencies for GitHub Actions up-to-date
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'daily'
diff --git a/.github/workflows/configlet.yml b/.github/workflows/configlet.yml
new file mode 100644
index 000000000..c86ed0cf5
--- /dev/null
+++ b/.github/workflows/configlet.yml
@@ -0,0 +1,16 @@
+name: Configlet CI
+
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+  configlet:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
+
+    - name: Fetch configlet
+      uses: exercism/github-actions/configlet-ci@main
+        
+    - name: Configlet Linter
+      run: configlet lint
diff --git a/bin/fetch-configlet b/bin/fetch-configlet
index 915ee034d..43f1c83ce 100755
--- a/bin/fetch-configlet
+++ b/bin/fetch-configlet
@@ -1,52 +1,58 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -eo pipefail
 
 readonly LATEST='https://api.github.com/repos/exercism/configlet/releases/latest'
 
 case "$(uname)" in
-    (Darwin*)   OS='mac'     ;;
-    (Linux*)    OS='linux'   ;;
-    (Windows*)  OS='windows' ;;
-    (MINGW*)    OS='windows' ;;
-    (MSYS_NT-*) OS='windows' ;;
-    (*)         OS='linux'   ;;
+  Darwin*)   os='mac'     ;;
+  Linux*)    os='linux'   ;;
+  Windows*)  os='windows' ;;
+  MINGW*)    os='windows' ;;
+  MSYS_NT-*) os='windows' ;;
+  *)         os='linux'   ;;
 esac
 
-case "$OS" in
-    (windows*) EXT='zip' ;;
-    (*)        EXT='tgz' ;;
+case "${os}" in
+  windows*) ext='zip' ;;
+  *)        ext='tgz' ;;
 esac
 
 case "$(uname -m)" in
-    (*64*)  ARCH='64bit' ;;
-    (*686*) ARCH='32bit' ;;
-    (*386*) ARCH='32bit' ;;
-    (*)     ARCH='64bit' ;;
+  *64*)  arch='64bit' ;;
+  *686*) arch='32bit' ;;
+  *386*) arch='32bit' ;;
+  *)     arch='64bit' ;;
 esac
 
-if [ -z "${GITHUB_TOKEN}" ]
-then
-    HEADER=''
-else
-    HEADER="authorization: Bearer ${GITHUB_TOKEN}"
+curlopts=(
+  --silent
+  --show-error
+  --fail
+  --location
+  --retry 3
+)
+
+if [[ -n "${GITHUB_TOKEN}" ]]; then
+  curlopts+=(--header "authorization: Bearer ${GITHUB_TOKEN}")
 fi
 
-FILENAME="configlet-${OS}-${ARCH}.${EXT}"
+suffix="${os}-${arch}.${ext}"
 
-get_url () {
-    curl --header "$HEADER" -s "$LATEST" |
-        awk -v filename=$FILENAME '$1 ~ /browser_download_url/ && $2 ~ filename { print $2 }' |
-        tr -d '"'
+get_download_url() {
+  curl "${curlopts[@]}" --header 'Accept: application/vnd.github.v3+json' "${LATEST}" |
+    grep "\"browser_download_url\": \".*/download/.*/configlet.*${suffix}\"$" |
+    cut -d'"' -f4
 }
 
-URL=$(get_url)
+download_url="$(get_download_url)"
+output_dir="bin"
+output_path="${output_dir}/latest-configlet.${ext}"
+curl "${curlopts[@]}" --output "${output_path}" "${download_url}"
 
-case "$EXT" in
-    (*zip)
-        curl --header "$HEADER" -s --location "$URL" -o bin/latest-configlet.zip
-        unzip bin/latest-configlet.zip -d bin/
-        rm bin/latest-configlet.zip
-        ;;
-    (*) curl --header "$HEADER" -s --location "$URL" | tar xz -C bin/ ;;
+case "${ext}" in
+  *zip) unzip "${output_path}" -d "${output_dir}"   ;;
+  *)    tar xzf "${output_path}" -C "${output_dir}" ;;
 esac
+
+rm -f "${output_path}"
diff --git a/config.json b/config.json
index 02703a544..828947f77 100644
--- a/config.json
+++ b/config.json
@@ -1,898 +1,908 @@
 {
   "language": "C",
+  "slug": "c",
   "active": true,
+  "status": {
+    "concept_exercises": false,
+    "test_runner": false,
+    "representer": false,
+    "analyzer": false
+  },
   "blurb": "C is a small, general-purpose, imperative programming language with a static type system, scopes, and structures. It's typically used as an alternative to assembly programming, such as in operating systems.",
+  "version": 3,
+  "online_editor": {
+    "indent_style": "space",
+    "indent_size": 4
+  },
   "test_pattern": "test/test_.*[.]c",
-  "exercises": [
-    {
-      "slug": "hello-world",
-      "uuid": "ee307061-5bc2-439c-8815-abd730aedc2d",
-      "core": true,
-      "auto_approve": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "strings"
-      ]
-    },
-    {
-      "slug": "armstrong-numbers",
-      "uuid": "a4658ee9-b71c-4764-9652-7ed83d46516b",
-      "core": true,
-      "auto_approve": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "logic",
-        "math"
-      ]
-    },
-    {
-      "slug": "darts",
-      "uuid": "a579e471-86f3-4f29-82ca-e984a2cc8891",
-      "core": false,
-      "auto_approve": true,
-      "unlocked_by": "armstrong-numbers",
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_else_statements",
-        "logic",
-        "math"
-      ]
-    },
-    {
-      "slug": "resistor-color",
-      "uuid": "75653d83-1a64-472c-ac43-49e87833c7f7",
-      "core": true,
-      "auto_approve": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "arrays",
-        "enums",
-        "pointers"
-      ]
-    },
-    {
-      "slug": "resistor-color-duo",
-      "uuid": "93271b2e-8ad9-4e7d-8732-5988140e8c00",
-      "core": false,
-      "auto_approve": true,
-      "unlocked_by": "resistor-color",
-      "difficulty": 1,
-      "topics": [
-        "arrays",
-        "enums"
-      ]
-    },
-    {
-      "slug": "resistor-color-trio",
-      "uuid": "6cd7bb9c-2817-4c44-8bef-5f2916b2db2d",
-      "core": false,
-      "auto_approve": true,
-      "unlocked_by": "resistor-color",
-      "difficulty": 1,
-      "topics": [
-        "arrays",
-        "enums",
-        "structs"
-      ]
-    },
-    {
-      "slug": "isogram",
-      "uuid": "b3c9d339-60bc-48fe-84ba-77cbc0017a89",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "strings"
-      ]
-    },
-    {
-      "slug": "acronym",
-      "uuid": "1a8ba121-d2c4-4994-8c6b-610d8987346d",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 1,
-      "topics": [
-        "control_flow_loops",
-        "memory_management",
-        "strings"
-      ]
-    },
-    {
-      "slug": "word-count",
-      "uuid": "1e4f4fcf-c32d-459f-8920-15ac56008666",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 3,
-      "topics": [
-        "filtering",
-        "memory_management",
-        "strings",
-        "structs"
-      ]
-    },
-    {
-      "slug": "pangram",
-      "uuid": "6311b9f8-b438-4186-88b2-1e4f55275ccb",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 3,
-      "topics": [
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "strings"
-      ]
-    },
-    {
-      "slug": "gigasecond",
-      "uuid": "000340f6-e30d-4d49-a255-016237d6fe60",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 1,
-      "topics": [
-        "dates"
-      ]
-    },
-    {
-      "slug": "space-age",
-      "uuid": "fc03c7de-b0c6-4806-90bb-e9dda846e660",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 1,
-      "topics": [
-        "functions"
-      ]
-    },
-    {
-      "slug": "meetup",
-      "uuid": "a7baa53f-e828-457e-a456-ba3471494d80",
-      "core": false,
-      "unlocked_by": "hamming",
-      "difficulty": 4,
-      "topics": [
-        "control_flow_if_statements",
-        "preprocessor_x_macros_in_test",
-        "strings",
-        "structs",
-        "time_functions"
-      ]
-    },
-    {
-      "slug": "hamming",
-      "uuid": "fa5e6bbb-2eaf-484f-a5c5-de5cb2a9175b",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 2,
-      "topics": [
-        "arrays",
-        "control_flow_loops",
-        "strings"
-      ]
-    },
-    {
-      "slug": "rna-transcription",
-      "uuid": "d12fea98-bf4e-476d-a91c-799fc98a1690",
-      "core": false,
-      "unlocked_by": "hamming",
-      "difficulty": 2,
-      "topics": [
-        "control_flow_case_statements",
-        "control_flow_loops",
-        "strings"
-      ]
-    },
-    {
-      "slug": "nucleotide-count",
-      "uuid": "38669990-e1e6-4486-a603-575a135d1f5c",
-      "core": false,
-      "unlocked_by": "hamming",
-      "difficulty": 2,
-      "topics": [
-        "control_flow_loops_switch_if_statements",
-        "memory_management",
-        "strings",
-        "text_formatting"
-      ]
-    },
-    {
-      "slug": "grains",
-      "uuid": "53959d50-efad-4911-84de-b67efe1bee5f",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "bitwise_operations",
-        "control_flow_loops",
-        "performance_optimizations"
-      ]
-    },
-    {
-      "slug": "leap",
-      "uuid": "9b047dda-b85e-4378-9487-9f9cce086e4f",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_else_statements",
-        "logic"
-      ]
-    },
-    {
-      "slug": "beer-song",
-      "uuid": "c06789cb-cdd6-44a7-bee5-16e0d85e913a",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 2,
-      "topics": [
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "strings"
-      ]
-    },
-    {
-      "slug": "raindrops",
-      "uuid": "93acdd0d-9bd1-4dec-a572-fd12d0c66187",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 2,
-      "topics": [
-        "control_flow_if_else_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "bob",
-      "uuid": "b0feb5e2-eb94-4393-b60d-cf8a275d1860",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 5,
-      "topics": [
-        "control_flow_if_else_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "difference-of-squares",
-      "uuid": "9802cbc0-eb70-4840-b8ee-a228f1fc29ea",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "control_flow_loops",
-        "math"
-      ]
-    },
-    {
-      "slug": "sum-of-multiples",
-      "uuid": "06a3660f-16b0-4391-939e-a9786887b0b2",
-      "core": false,
-      "unlocked_by": "difference-of-squares",
-      "difficulty": 4,
-      "topics": [
-        "control_flow_case_statements",
-        "control_flow_loops",
-        "math"
-      ]
-    },
-    {
-      "slug": "square-root",
-      "uuid": "0400f52d-48ae-4300-a72e-32e8a08514d0",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 4,
-      "topics": [
-        "bitwise_operations",
-        "control_flow_loops",
-        "math"
-      ]
-    },
-    {
-      "slug": "grade-school",
-      "uuid": "68b1de28-7c3d-4e8c-ab51-7abe6779e187",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "pointers",
-        "sorting",
-        "strings",
-        "structs"
-      ]
-    },
-    {
-      "slug": "binary-search",
-      "uuid": "db1771d2-afd8-4e01-9b6a-6be75029ef1d",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 2,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "searching"
-      ]
-    },
-    {
-      "slug": "anagram",
-      "uuid": "0b64079a-7fec-42b4-bd2e-1b04dd4b7e6e",
-      "core": false,
-      "unlocked_by": "binary-search",
-      "difficulty": 5,
-      "topics": [
-        "filtering",
-        "strings",
-        "structs"
-      ]
-    },
-    {
-      "slug": "rational-numbers",
-      "uuid": "c3325db9-8067-4c2f-94b3-b5190b056d38",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 5,
-      "topics": [
-        "math",
-        "structs"
-      ]
-    },
-    {
-      "slug": "roman-numerals",
-      "uuid": "6cde608f-9819-46cd-884b-dbda39a4fa16",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "control_flow_loops",
-        "memory_management",
-        "strings",
-        "structs"
-      ]
-    },
-    {
-      "slug": "circular-buffer",
-      "uuid": "c54a33a3-8c6f-4964-b770-b602d207fa20",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "buffers",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "flexible_array_members",
-        "memory_management",
-        "pointers",
-        "structs"
-      ]
-    },
-    {
-      "slug": "list-ops",
-      "uuid": "27a56356-d3ad-41d2-923c-2a58fbb36454",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "flexible_array_members",
-        "function_pointers",
-        "memory_management",
-        "pointers",
-        "structs"
-      ]
-    },
-    {
-      "slug": "pythagorean-triplet",
-      "uuid": "7b7c61f4-2849-46b7-9057-900bb6b95052",
-      "core": true,
-      "auto_approve": true,
-      "unlocked_by": null,
-      "difficulty": 4,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "flexible_array_members",
-        "memory_management",
-        "structs"
-      ]
-    },
-    {
-      "slug": "saddle-points",
-      "uuid": "448f9137-4e58-4c26-9853-abe07f01c908",
-      "core": true,
-      "auto_approve": true,
-      "unlocked_by": null,
-      "difficulty": 4,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "flexible_array_members",
-        "memory_management",
-        "structs"
-      ]
-    },
-    {
-      "slug": "allergies",
-      "uuid": "871f1c41-debd-4807-8ee5-bde54c3918f8",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 4,
-      "topics": [
-        "control_flow_if_statements",
-        "control_flow_loops",
-        "memory_management",
-        "structs"
-      ]
-    },
-    {
-      "slug": "atbash-cipher",
-      "uuid": "180f59f3-78ab-4368-9fa7-e3d98a9dca78",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 5,
-      "topics": [
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "strings"
-      ]
-    },
-    {
-      "slug": "series",
-      "uuid": "40bcec79-7235-4ac6-b69f-8e3a6374188d",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 2,
-      "topics": [
-        "control_flow_if_statements",
-        "memory_management",
-        "strings",
-        "text_formatting"
-      ]
-    },
-    {
-      "slug": "react",
-      "uuid": "929b651e-2017-4f98-b2cb-1dc46c609703",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 10,
-      "topics": [
-        "functions",
-        "memory_management"
-      ]
-    },
-    {
-      "slug": "phone-number",
-      "uuid": "660d1586-c4e0-4537-94b5-455a983820f8",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 4,
-      "topics": [
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "memory_management",
-        "strings"
-      ]
-    },
-    {
-      "slug": "clock",
-      "uuid": "b868eeff-400c-4e46-8675-10d85c14b503",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 2,
-      "topics": [
-        "control_flow_if_statements",
-        "preprocessor_x_macros_in_test",
-        "strings",
-        "text_formatting"
-      ]
-    },
-    {
-      "slug": "sieve",
-      "uuid": "fb2530a3-cbbf-4ba9-88d0-203faac03e96",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 2,
-      "topics": [
-        "control_flow_if_statements",
-        "math",
-        "memory_management"
-      ]
-    },
-    {
-      "slug": "nth-prime",
-      "uuid": "a0a703b2-244b-4739-b318-b837618b1047",
-      "core": false,
-      "unlocked_by": "sieve",
-      "difficulty": 4,
-      "topics": [
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "math",
-        "performance_optimizations"
-      ]
-    },
-    {
-      "slug": "robot-simulator",
-      "uuid": "e665da31-fda2-4bce-94e9-7d79dffdef14",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 2,
-      "topics": [
-        "control_flow_if_statements",
-        "pointers",
-        "strings",
-        "structs",
-        "variable_argument_lists"
-      ]
-    },
-    {
-      "slug": "pascals-triangle",
-      "uuid": "be19352f-1b63-4673-9a2d-e763ee807741",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_else_statements",
-        "math",
-        "memory_management"
-      ]
-    },
-    {
-      "slug": "triangle",
-      "uuid": "5c6bc8d2-2509-471a-993c-a5bf9d030ca7",
-      "core": false,
-      "unlocked_by": "pascals-triangle",
-      "difficulty": 1,
-      "topics": [
-        "booleans",
-        "control_flow_if_else_statements",
-        "structs"
-      ]
-    },
-    {
-      "slug": "perfect-numbers",
-      "uuid": "a1168a15-d46f-4541-8b58-68bca0c54733",
-      "core": false,
-      "unlocked_by": "pascals-triangle",
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_else_statements",
-        "math"
-      ]
-    },
-    {
-      "slug": "collatz-conjecture",
-      "uuid": "5a47f8a5-36a1-4479-bb77-ef5fbab4bae0",
-      "core": false,
-      "unlocked_by": "pascals-triangle",
-      "difficulty": 2,
-      "topics": [
-        "functions",
-        "math"
-      ]
-    },
-    {
-      "slug": "binary",
-      "uuid": "8621177c-1068-4610-bf5b-26cf23340ae6",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_statements",
-        "control_flow_loops",
-        "math"
-      ]
-    },
-    {
-      "slug": "all-your-base",
-      "uuid": "e3574f75-89cb-4dda-8fce-14ce3141b595",
-      "core": false,
-      "unlocked_by": "binary",
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "control_flow_if_else_statements",
-        "control_flow_loops",
-        "math"
-      ]
-    },
-    {
-      "slug": "palindrome-products",
-      "uuid": "8dd43f6c-37ba-42b1-bb85-9ad693e4ce03",
-      "core": false,
-      "unlocked_by": "binary",
-      "difficulty": 2,
-      "topics": [
-        "functions",
-        "math",
-        "pointers",
-        "strings",
-        "structs"
-      ]
-    },
-    {
-      "slug": "sublist",
-      "uuid": "a19acc6f-2530-434d-9c98-2d8d4ca635d3",
-      "core": false,
-      "unlocked_by": "binary",
-      "difficulty": 4,
-      "topics": [
-        "arrays",
-        "control_flow_if_statements",
-        "control_flow_loops",
-        "pointers",
-        "searching"
-      ]
-    },
-    {
-      "slug": "largest-series-product",
-      "uuid": "4b5974fe-dcff-4542-ad3e-2782201cba1e",
-      "core": false,
-      "unlocked_by": "binary",
-      "difficulty": 5,
-      "topics": [
-        "control_flow_loops",
-        "math",
-        "performance_optimizations",
-        "strings"
-      ]
-    },
-    {
-      "slug": "scrabble-score",
-      "uuid": "8c631290-13b7-4d25-9ee7-ced2e534deb4",
-      "core": false,
-      "unlocked_by": "binary",
-      "difficulty": 4,
-      "topics": [
-        "pointers",
-        "searching",
-        "strings",
-        "structs"
-      ]
-    },
-    {
-      "slug": "queen-attack",
-      "uuid": "b0a152e9-5a45-41f9-bda0-427111d9a56c",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_statements",
-        "enums",
-        "functions",
-        "structs"
-      ]
-    },
-    {
-      "slug": "linked-list",
-      "uuid": "58107e5f-8091-4429-9130-13f2c7dac9a9",
-      "core": true,
-      "unlocked_by": null,
-      "difficulty": 4,
-      "topics": [
-        "functions",
-        "lists",
-        "pointers",
-        "structs"
-      ]
-    },
-    {
-      "slug": "complex-numbers",
-      "uuid": "472b1a6b-2b7a-4609-a97d-4c2b6c941a1f",
-      "core": false,
-      "unlocked_by": "difference-of-squares",
-      "difficulty": 2,
-      "topics": [
-        "math",
-        "performance_optimizations",
-        "structs"
-      ]
-    },
-    {
-      "slug": "etl",
-      "uuid": "9b6faac9-10dd-46ff-9d29-7242e74f5c06",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 2,
-      "topics": [
-        "pointers",
-        "structs"
-      ]
-    },
-    {
-      "slug": "prime-factors",
-      "uuid": "f34db12c-7acc-4287-92a6-c077938512d7",
-      "core": false,
-      "unlocked_by": "sieve",
-      "difficulty": 2,
-      "topics": [
-        "algorithms",
-        "math"
-      ]
-    },
-    {
-      "slug": "luhn",
-      "uuid": "8c0762e6-702e-4733-a0a1-65099e2a46f7",
-      "core": false,
-      "unlocked_by": "pascals-triangle",
-      "difficulty": 2,
-      "topics": [
-        "algorithms",
-        "strings"
-      ]
-    },
-    {
-      "slug": "matching-brackets",
-      "uuid": "cd573670-54da-4291-ab78-afd5d77fbeac",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 5,
-      "topics": [
-        "control_flow_if_statements",
-        "recursion",
-        "stacks"
-      ]
-    },
-    {
-      "slug": "say",
-      "uuid": "523fa391-08d4-4c4e-95e6-20335cd157a0",
-      "core": false,
-      "unlocked_by": "circular-buffer",
-      "difficulty": 6,
-      "topics": [
-        "algorithms",
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "crypto-square",
-      "uuid": "23c2a169-eea2-4636-af62-4a77a4dc3d7b",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 6,
-      "topics": [
-        "algorithms",
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "secret-handshake",
-      "uuid": "119c20a6-849f-412e-b0a6-113a2cedc72d",
-      "core": false,
-      "unlocked_by": "hamming",
-      "difficulty": 3,
-      "topics": [
-        "algorithms",
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "pig-latin",
-      "uuid": "62f539e7-f682-412d-bf86-38503e7cebca",
-      "core": false,
-      "unlocked_by": "hamming",
-      "difficulty": 4,
-      "topics": [
-        "algorithms",
-        "control_flow_if_statements",
-        "functions",
-        "strings"
-      ]
-    },
-    {
-      "slug": "minesweeper",
-      "uuid": "2e97072f-9e77-4ddd-9d75-6162a927bab1",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "run-length-encoding",
-      "uuid": "b22152b9-99d1-411c-8cf2-f89e8f5f8141",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 4,
-      "topics": [
-        "algorithms",
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "two-fer",
-      "uuid": "15653c72-5468-415f-9425-6c58d552d346",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 1,
-      "topics": [
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "wordy",
-      "uuid": "c1392944-08fd-45c3-b508-41d682f832d3",
-      "core": false,
-      "unlocked_by": "grains",
-      "difficulty": 4,
-      "topics": [
-        "algorithms",
-        "control_flow_if_statements",
-        "functions",
-        "strings"
-      ]
-    },
-    {
-      "slug": "binary-search-tree",
-      "uuid": "1b33f528-8f29-4582-a268-07be2d1a4516",
-      "core": false,
-      "unlocked_by": "binary-search",
-      "difficulty": 6,
-      "topics": [
-        "arrays",
-        "control_flow_loops",
-        "recursion",
-        "structs"
-      ]
-    },
-    {
-      "slug": "diamond",
-      "uuid": "8605a296-1c67-4723-84ac-3a25d77ed015",
-      "core": false,
-      "unlocked_by": "phone-number",
-      "difficulty": 3,
-      "topics": [
-        "arrays",
-        "control_flow_if_statements",
-        "functions",
-        "strings"
-      ]
-    },
-    {
-      "slug": "rail-fence-cipher",
-      "uuid": "314dcf23-9cd9-4488-b53e-6dee1b303980",
-      "core": false,
-      "unlocked_by": "isogram",
-      "difficulty": 4,
-      "topics": [
-        "arrays",
-        "control_flow_if_statements",
-        "strings"
-      ]
-    },
-    {
-      "slug": "two-bucket",
-      "uuid": "d8ecb4c4-2af2-423c-9f39-4adab687ecd6",
-      "core": false,
-      "unlocked_by": "grade-school",
-      "difficulty": 6,
-      "topics": [
-        "algorithms",
-        "control_flow_if_else_statements",
-        "control_flow_loops"
-      ]
-    }
-  ]
+  "exercises": {
+    "concept": [],
+    "practice": [
+      {
+        "slug": "hello-world",
+        "name": "Hello World",
+        "uuid": "ee307061-5bc2-439c-8815-abd730aedc2d",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "strings"
+        ]
+      },
+      {
+        "slug": "armstrong-numbers",
+        "name": "Armstrong Numbers",
+        "uuid": "a4658ee9-b71c-4764-9652-7ed83d46516b",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "logic",
+          "math"
+        ]
+      },
+      {
+        "slug": "resistor-color",
+        "name": "Resistor Color",
+        "uuid": "75653d83-1a64-472c-ac43-49e87833c7f7",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "arrays",
+          "enums",
+          "pointers"
+        ]
+      },
+      {
+        "slug": "isogram",
+        "name": "Isogram",
+        "uuid": "b3c9d339-60bc-48fe-84ba-77cbc0017a89",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "strings"
+        ]
+      },
+      {
+        "slug": "hamming",
+        "name": "Hamming",
+        "uuid": "fa5e6bbb-2eaf-484f-a5c5-de5cb2a9175b",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "arrays",
+          "control_flow_loops",
+          "strings"
+        ]
+      },
+      {
+        "slug": "grains",
+        "name": "Grains",
+        "uuid": "53959d50-efad-4911-84de-b67efe1bee5f",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "bitwise_operations",
+          "control_flow_loops",
+          "performance_optimizations"
+        ]
+      },
+      {
+        "slug": "difference-of-squares",
+        "name": "Difference Of Squares",
+        "uuid": "9802cbc0-eb70-4840-b8ee-a228f1fc29ea",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_loops",
+          "math"
+        ]
+      },
+      {
+        "slug": "square-root",
+        "name": "Square Root",
+        "uuid": "0400f52d-48ae-4300-a72e-32e8a08514d0",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "bitwise_operations",
+          "control_flow_loops",
+          "math"
+        ]
+      },
+      {
+        "slug": "grade-school",
+        "name": "Grade School",
+        "uuid": "68b1de28-7c3d-4e8c-ab51-7abe6779e187",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "pointers",
+          "sorting",
+          "strings",
+          "structs"
+        ]
+      },
+      {
+        "slug": "binary-search",
+        "name": "Binary Search",
+        "uuid": "db1771d2-afd8-4e01-9b6a-6be75029ef1d",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "searching"
+        ]
+      },
+      {
+        "slug": "rational-numbers",
+        "name": "Rational Numbers",
+        "uuid": "c3325db9-8067-4c2f-94b3-b5190b056d38",
+        "prerequisites": [],
+        "difficulty": 5,
+        "topics": [
+          "math",
+          "structs"
+        ]
+      },
+      {
+        "slug": "circular-buffer",
+        "name": "Circular Buffer",
+        "uuid": "c54a33a3-8c6f-4964-b770-b602d207fa20",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "buffers",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "flexible_array_members",
+          "memory_management",
+          "pointers",
+          "structs"
+        ]
+      },
+      {
+        "slug": "list-ops",
+        "name": "List Ops",
+        "uuid": "27a56356-d3ad-41d2-923c-2a58fbb36454",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "flexible_array_members",
+          "function_pointers",
+          "memory_management",
+          "pointers",
+          "structs"
+        ]
+      },
+      {
+        "slug": "pythagorean-triplet",
+        "name": "Pythagorean Triplet",
+        "uuid": "7b7c61f4-2849-46b7-9057-900bb6b95052",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "flexible_array_members",
+          "memory_management",
+          "structs"
+        ]
+      },
+      {
+        "slug": "saddle-points",
+        "name": "Saddle Points",
+        "uuid": "448f9137-4e58-4c26-9853-abe07f01c908",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "flexible_array_members",
+          "memory_management",
+          "structs"
+        ]
+      },
+      {
+        "slug": "allergies",
+        "name": "Allergies",
+        "uuid": "871f1c41-debd-4807-8ee5-bde54c3918f8",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "control_flow_if_statements",
+          "control_flow_loops",
+          "memory_management",
+          "structs"
+        ]
+      },
+      {
+        "slug": "phone-number",
+        "name": "Phone Number",
+        "uuid": "660d1586-c4e0-4537-94b5-455a983820f8",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "memory_management",
+          "strings"
+        ]
+      },
+      {
+        "slug": "clock",
+        "name": "Clock",
+        "uuid": "b868eeff-400c-4e46-8675-10d85c14b503",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_if_statements",
+          "preprocessor_x_macros_in_test",
+          "strings",
+          "text_formatting"
+        ]
+      },
+      {
+        "slug": "sieve",
+        "name": "Sieve",
+        "uuid": "fb2530a3-cbbf-4ba9-88d0-203faac03e96",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_if_statements",
+          "math",
+          "memory_management"
+        ]
+      },
+      {
+        "slug": "robot-simulator",
+        "name": "Robot Simulator",
+        "uuid": "e665da31-fda2-4bce-94e9-7d79dffdef14",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_if_statements",
+          "pointers",
+          "strings",
+          "structs",
+          "variable_argument_lists"
+        ]
+      },
+      {
+        "slug": "pascals-triangle",
+        "name": "Pascals Triangle",
+        "uuid": "be19352f-1b63-4673-9a2d-e763ee807741",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_else_statements",
+          "math",
+          "memory_management"
+        ]
+      },
+      {
+        "slug": "binary",
+        "name": "Binary",
+        "uuid": "8621177c-1068-4610-bf5b-26cf23340ae6",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_statements",
+          "control_flow_loops",
+          "math"
+        ]
+      },
+      {
+        "slug": "queen-attack",
+        "name": "Queen Attack",
+        "uuid": "b0a152e9-5a45-41f9-bda0-427111d9a56c",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_statements",
+          "enums",
+          "functions",
+          "structs"
+        ]
+      },
+      {
+        "slug": "linked-list",
+        "name": "Linked List",
+        "uuid": "58107e5f-8091-4429-9130-13f2c7dac9a9",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "functions",
+          "lists",
+          "pointers",
+          "structs"
+        ]
+      },
+      {
+        "slug": "darts",
+        "name": "Darts",
+        "uuid": "a579e471-86f3-4f29-82ca-e984a2cc8891",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_else_statements",
+          "logic",
+          "math"
+        ]
+      },
+      {
+        "slug": "resistor-color-duo",
+        "name": "Resistor Color Duo",
+        "uuid": "93271b2e-8ad9-4e7d-8732-5988140e8c00",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "arrays",
+          "enums"
+        ]
+      },
+      {
+        "slug": "resistor-color-trio",
+        "name": "Resistor Color Trio",
+        "uuid": "6cd7bb9c-2817-4c44-8bef-5f2916b2db2d",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "arrays",
+          "enums",
+          "structs"
+        ]
+      },
+      {
+        "slug": "acronym",
+        "name": "Acronym",
+        "uuid": "1a8ba121-d2c4-4994-8c6b-610d8987346d",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_loops",
+          "memory_management",
+          "strings"
+        ]
+      },
+      {
+        "slug": "gigasecond",
+        "name": "Gigasecond",
+        "uuid": "000340f6-e30d-4d49-a255-016237d6fe60",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "dates"
+        ]
+      },
+      {
+        "slug": "space-age",
+        "name": "Space Age",
+        "uuid": "fc03c7de-b0c6-4806-90bb-e9dda846e660",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "functions"
+        ]
+      },
+      {
+        "slug": "pangram",
+        "name": "Pangram",
+        "uuid": "6311b9f8-b438-4186-88b2-1e4f55275ccb",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "strings"
+        ]
+      },
+      {
+        "slug": "word-count",
+        "name": "Word Count",
+        "uuid": "1e4f4fcf-c32d-459f-8920-15ac56008666",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "filtering",
+          "memory_management",
+          "strings",
+          "structs"
+        ]
+      },
+      {
+        "slug": "rail-fence-cipher",
+        "name": "Rail Fence Cipher",
+        "uuid": "314dcf23-9cd9-4488-b53e-6dee1b303980",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "arrays",
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "matching-brackets",
+        "name": "Matching Brackets",
+        "uuid": "cd573670-54da-4291-ab78-afd5d77fbeac",
+        "prerequisites": [],
+        "difficulty": 5,
+        "topics": [
+          "control_flow_if_statements",
+          "recursion",
+          "stacks"
+        ]
+      },
+      {
+        "slug": "nucleotide-count",
+        "name": "Nucleotide Count",
+        "uuid": "38669990-e1e6-4486-a603-575a135d1f5c",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_loops_switch_if_statements",
+          "memory_management",
+          "strings",
+          "text_formatting"
+        ]
+      },
+      {
+        "slug": "rna-transcription",
+        "name": "Rna Transcription",
+        "uuid": "d12fea98-bf4e-476d-a91c-799fc98a1690",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_case_statements",
+          "control_flow_loops",
+          "strings"
+        ]
+      },
+      {
+        "slug": "secret-handshake",
+        "name": "Secret Handshake",
+        "uuid": "119c20a6-849f-412e-b0a6-113a2cedc72d",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "algorithms",
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "meetup",
+        "name": "Meetup",
+        "uuid": "a7baa53f-e828-457e-a456-ba3471494d80",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "control_flow_if_statements",
+          "preprocessor_x_macros_in_test",
+          "strings",
+          "structs",
+          "time_functions"
+        ]
+      },
+      {
+        "slug": "pig-latin",
+        "name": "Pig Latin",
+        "uuid": "62f539e7-f682-412d-bf86-38503e7cebca",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "algorithms",
+          "control_flow_if_statements",
+          "functions",
+          "strings"
+        ]
+      },
+      {
+        "slug": "leap",
+        "name": "Leap",
+        "uuid": "9b047dda-b85e-4378-9487-9f9cce086e4f",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_else_statements",
+          "logic"
+        ]
+      },
+      {
+        "slug": "two-fer",
+        "name": "Two Fer",
+        "uuid": "15653c72-5468-415f-9425-6c58d552d346",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "beer-song",
+        "name": "Beer Song",
+        "uuid": "c06789cb-cdd6-44a7-bee5-16e0d85e913a",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "strings"
+        ]
+      },
+      {
+        "slug": "raindrops",
+        "name": "Raindrops",
+        "uuid": "93acdd0d-9bd1-4dec-a572-fd12d0c66187",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_if_else_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "roman-numerals",
+        "name": "Roman Numerals",
+        "uuid": "6cde608f-9819-46cd-884b-dbda39a4fa16",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "control_flow_loops",
+          "memory_management",
+          "strings",
+          "structs"
+        ]
+      },
+      {
+        "slug": "wordy",
+        "name": "Wordy",
+        "uuid": "c1392944-08fd-45c3-b508-41d682f832d3",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "algorithms",
+          "control_flow_if_statements",
+          "functions",
+          "strings"
+        ]
+      },
+      {
+        "slug": "bob",
+        "name": "Bob",
+        "uuid": "b0feb5e2-eb94-4393-b60d-cf8a275d1860",
+        "prerequisites": [],
+        "difficulty": 5,
+        "topics": [
+          "control_flow_if_else_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "complex-numbers",
+        "name": "Complex Numbers",
+        "uuid": "472b1a6b-2b7a-4609-a97d-4c2b6c941a1f",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "math",
+          "performance_optimizations",
+          "structs"
+        ]
+      },
+      {
+        "slug": "sum-of-multiples",
+        "name": "Sum Of Multiples",
+        "uuid": "06a3660f-16b0-4391-939e-a9786887b0b2",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "control_flow_case_statements",
+          "control_flow_loops",
+          "math"
+        ]
+      },
+      {
+        "slug": "two-bucket",
+        "name": "Two Bucket",
+        "uuid": "d8ecb4c4-2af2-423c-9f39-4adab687ecd6",
+        "prerequisites": [],
+        "difficulty": 6,
+        "topics": [
+          "algorithms",
+          "control_flow_if_else_statements",
+          "control_flow_loops"
+        ]
+      },
+      {
+        "slug": "anagram",
+        "name": "Anagram",
+        "uuid": "0b64079a-7fec-42b4-bd2e-1b04dd4b7e6e",
+        "prerequisites": [],
+        "difficulty": 5,
+        "topics": [
+          "filtering",
+          "strings",
+          "structs"
+        ]
+      },
+      {
+        "slug": "binary-search-tree",
+        "name": "Binary Search Tree",
+        "uuid": "1b33f528-8f29-4582-a268-07be2d1a4516",
+        "prerequisites": [],
+        "difficulty": 6,
+        "topics": [
+          "arrays",
+          "control_flow_loops",
+          "recursion",
+          "structs"
+        ]
+      },
+      {
+        "slug": "say",
+        "name": "Say",
+        "uuid": "523fa391-08d4-4c4e-95e6-20335cd157a0",
+        "prerequisites": [],
+        "difficulty": 6,
+        "topics": [
+          "algorithms",
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "etl",
+        "name": "Etl",
+        "uuid": "9b6faac9-10dd-46ff-9d29-7242e74f5c06",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "pointers",
+          "structs"
+        ]
+      },
+      {
+        "slug": "series",
+        "name": "Series",
+        "uuid": "40bcec79-7235-4ac6-b69f-8e3a6374188d",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "control_flow_if_statements",
+          "memory_management",
+          "strings",
+          "text_formatting"
+        ]
+      },
+      {
+        "slug": "diamond",
+        "name": "Diamond",
+        "uuid": "8605a296-1c67-4723-84ac-3a25d77ed015",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "control_flow_if_statements",
+          "functions",
+          "strings"
+        ]
+      },
+      {
+        "slug": "minesweeper",
+        "name": "Minesweeper",
+        "uuid": "2e97072f-9e77-4ddd-9d75-6162a927bab1",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "run-length-encoding",
+        "name": "Run Length Encoding",
+        "uuid": "b22152b9-99d1-411c-8cf2-f89e8f5f8141",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "algorithms",
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "atbash-cipher",
+        "name": "Atbash Cipher",
+        "uuid": "180f59f3-78ab-4368-9fa7-e3d98a9dca78",
+        "prerequisites": [],
+        "difficulty": 5,
+        "topics": [
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "strings"
+        ]
+      },
+      {
+        "slug": "crypto-square",
+        "name": "Crypto Square",
+        "uuid": "23c2a169-eea2-4636-af62-4a77a4dc3d7b",
+        "prerequisites": [],
+        "difficulty": 6,
+        "topics": [
+          "algorithms",
+          "control_flow_if_statements",
+          "strings"
+        ]
+      },
+      {
+        "slug": "react",
+        "name": "React",
+        "uuid": "929b651e-2017-4f98-b2cb-1dc46c609703",
+        "prerequisites": [],
+        "difficulty": 10,
+        "topics": [
+          "functions",
+          "memory_management"
+        ]
+      },
+      {
+        "slug": "prime-factors",
+        "name": "Prime Factors",
+        "uuid": "f34db12c-7acc-4287-92a6-c077938512d7",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "algorithms",
+          "math"
+        ]
+      },
+      {
+        "slug": "nth-prime",
+        "name": "Nth Prime",
+        "uuid": "a0a703b2-244b-4739-b318-b837618b1047",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "math",
+          "performance_optimizations"
+        ]
+      },
+      {
+        "slug": "perfect-numbers",
+        "name": "Perfect Numbers",
+        "uuid": "a1168a15-d46f-4541-8b58-68bca0c54733",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "control_flow_if_else_statements",
+          "math"
+        ]
+      },
+      {
+        "slug": "triangle",
+        "name": "Triangle",
+        "uuid": "5c6bc8d2-2509-471a-993c-a5bf9d030ca7",
+        "prerequisites": [],
+        "difficulty": 1,
+        "topics": [
+          "booleans",
+          "control_flow_if_else_statements",
+          "structs"
+        ]
+      },
+      {
+        "slug": "collatz-conjecture",
+        "name": "Collatz Conjecture",
+        "uuid": "5a47f8a5-36a1-4479-bb77-ef5fbab4bae0",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "functions",
+          "math"
+        ]
+      },
+      {
+        "slug": "luhn",
+        "name": "Luhn",
+        "uuid": "8c0762e6-702e-4733-a0a1-65099e2a46f7",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "algorithms",
+          "strings"
+        ]
+      },
+      {
+        "slug": "palindrome-products",
+        "name": "Palindrome Products",
+        "uuid": "8dd43f6c-37ba-42b1-bb85-9ad693e4ce03",
+        "prerequisites": [],
+        "difficulty": 2,
+        "topics": [
+          "functions",
+          "math",
+          "pointers",
+          "strings",
+          "structs"
+        ]
+      },
+      {
+        "slug": "all-your-base",
+        "name": "All Your Base",
+        "uuid": "e3574f75-89cb-4dda-8fce-14ce3141b595",
+        "prerequisites": [],
+        "difficulty": 3,
+        "topics": [
+          "arrays",
+          "control_flow_if_else_statements",
+          "control_flow_loops",
+          "math"
+        ]
+      },
+      {
+        "slug": "scrabble-score",
+        "name": "Scrabble Score",
+        "uuid": "8c631290-13b7-4d25-9ee7-ced2e534deb4",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "pointers",
+          "searching",
+          "strings",
+          "structs"
+        ]
+      },
+      {
+        "slug": "sublist",
+        "name": "Sublist",
+        "uuid": "a19acc6f-2530-434d-9c98-2d8d4ca635d3",
+        "prerequisites": [],
+        "difficulty": 4,
+        "topics": [
+          "arrays",
+          "control_flow_if_statements",
+          "control_flow_loops",
+          "pointers",
+          "searching"
+        ]
+      },
+      {
+        "slug": "largest-series-product",
+        "name": "Largest Series Product",
+        "uuid": "4b5974fe-dcff-4542-ad3e-2782201cba1e",
+        "prerequisites": [],
+        "difficulty": 5,
+        "topics": [
+          "control_flow_loops",
+          "math",
+          "performance_optimizations",
+          "strings"
+        ]
+      }
+    ]
+  },
+  "concepts": [],
+  "key_features": [],
+  "tags": []
 }
diff --git a/exercises/acronym/.meta/tests.toml b/exercises/practice/acronym/.meta/tests.toml
similarity index 100%
rename from exercises/acronym/.meta/tests.toml
rename to exercises/practice/acronym/.meta/tests.toml
diff --git a/exercises/acronym/README.md b/exercises/practice/acronym/README.md
similarity index 100%
rename from exercises/acronym/README.md
rename to exercises/practice/acronym/README.md
diff --git a/exercises/acronym/makefile b/exercises/practice/acronym/makefile
similarity index 100%
rename from exercises/acronym/makefile
rename to exercises/practice/acronym/makefile
diff --git a/exercises/acronym/src/acronym.c b/exercises/practice/acronym/src/acronym.c
similarity index 100%
rename from exercises/acronym/src/acronym.c
rename to exercises/practice/acronym/src/acronym.c
diff --git a/exercises/acronym/src/acronym.h b/exercises/practice/acronym/src/acronym.h
similarity index 100%
rename from exercises/acronym/src/acronym.h
rename to exercises/practice/acronym/src/acronym.h
diff --git a/exercises/acronym/src/example.c b/exercises/practice/acronym/src/example.c
similarity index 100%
rename from exercises/acronym/src/example.c
rename to exercises/practice/acronym/src/example.c
diff --git a/exercises/acronym/test/test_acronym.c b/exercises/practice/acronym/test/test_acronym.c
similarity index 100%
rename from exercises/acronym/test/test_acronym.c
rename to exercises/practice/acronym/test/test_acronym.c
diff --git a/exercises/acronym/test/vendor/unity.c b/exercises/practice/acronym/test/vendor/unity.c
similarity index 100%
rename from exercises/acronym/test/vendor/unity.c
rename to exercises/practice/acronym/test/vendor/unity.c
diff --git a/exercises/acronym/test/vendor/unity.h b/exercises/practice/acronym/test/vendor/unity.h
similarity index 100%
rename from exercises/acronym/test/vendor/unity.h
rename to exercises/practice/acronym/test/vendor/unity.h
diff --git a/exercises/acronym/test/vendor/unity_internals.h b/exercises/practice/acronym/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/acronym/test/vendor/unity_internals.h
rename to exercises/practice/acronym/test/vendor/unity_internals.h
diff --git a/exercises/all-your-base/.meta/tests.toml b/exercises/practice/all-your-base/.meta/tests.toml
similarity index 100%
rename from exercises/all-your-base/.meta/tests.toml
rename to exercises/practice/all-your-base/.meta/tests.toml
diff --git a/exercises/all-your-base/README.md b/exercises/practice/all-your-base/README.md
similarity index 100%
rename from exercises/all-your-base/README.md
rename to exercises/practice/all-your-base/README.md
diff --git a/exercises/all-your-base/makefile b/exercises/practice/all-your-base/makefile
similarity index 100%
rename from exercises/all-your-base/makefile
rename to exercises/practice/all-your-base/makefile
diff --git a/exercises/all-your-base/src/all_your_base.c b/exercises/practice/all-your-base/src/all_your_base.c
similarity index 100%
rename from exercises/all-your-base/src/all_your_base.c
rename to exercises/practice/all-your-base/src/all_your_base.c
diff --git a/exercises/all-your-base/src/all_your_base.h b/exercises/practice/all-your-base/src/all_your_base.h
similarity index 100%
rename from exercises/all-your-base/src/all_your_base.h
rename to exercises/practice/all-your-base/src/all_your_base.h
diff --git a/exercises/all-your-base/src/example.c b/exercises/practice/all-your-base/src/example.c
similarity index 100%
rename from exercises/all-your-base/src/example.c
rename to exercises/practice/all-your-base/src/example.c
diff --git a/exercises/all-your-base/src/example.h b/exercises/practice/all-your-base/src/example.h
similarity index 100%
rename from exercises/all-your-base/src/example.h
rename to exercises/practice/all-your-base/src/example.h
diff --git a/exercises/all-your-base/test/test_all_your_base.c b/exercises/practice/all-your-base/test/test_all_your_base.c
similarity index 100%
rename from exercises/all-your-base/test/test_all_your_base.c
rename to exercises/practice/all-your-base/test/test_all_your_base.c
diff --git a/exercises/all-your-base/test/vendor/unity.c b/exercises/practice/all-your-base/test/vendor/unity.c
similarity index 100%
rename from exercises/all-your-base/test/vendor/unity.c
rename to exercises/practice/all-your-base/test/vendor/unity.c
diff --git a/exercises/all-your-base/test/vendor/unity.h b/exercises/practice/all-your-base/test/vendor/unity.h
similarity index 100%
rename from exercises/all-your-base/test/vendor/unity.h
rename to exercises/practice/all-your-base/test/vendor/unity.h
diff --git a/exercises/all-your-base/test/vendor/unity_internals.h b/exercises/practice/all-your-base/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/all-your-base/test/vendor/unity_internals.h
rename to exercises/practice/all-your-base/test/vendor/unity_internals.h
diff --git a/exercises/allergies/.meta/tests.toml b/exercises/practice/allergies/.meta/tests.toml
similarity index 100%
rename from exercises/allergies/.meta/tests.toml
rename to exercises/practice/allergies/.meta/tests.toml
diff --git a/exercises/allergies/README.md b/exercises/practice/allergies/README.md
similarity index 100%
rename from exercises/allergies/README.md
rename to exercises/practice/allergies/README.md
diff --git a/exercises/allergies/makefile b/exercises/practice/allergies/makefile
similarity index 100%
rename from exercises/allergies/makefile
rename to exercises/practice/allergies/makefile
diff --git a/exercises/allergies/src/allergies.c b/exercises/practice/allergies/src/allergies.c
similarity index 100%
rename from exercises/allergies/src/allergies.c
rename to exercises/practice/allergies/src/allergies.c
diff --git a/exercises/allergies/src/allergies.h b/exercises/practice/allergies/src/allergies.h
similarity index 100%
rename from exercises/allergies/src/allergies.h
rename to exercises/practice/allergies/src/allergies.h
diff --git a/exercises/allergies/src/example.c b/exercises/practice/allergies/src/example.c
similarity index 100%
rename from exercises/allergies/src/example.c
rename to exercises/practice/allergies/src/example.c
diff --git a/exercises/allergies/src/example.h b/exercises/practice/allergies/src/example.h
similarity index 100%
rename from exercises/allergies/src/example.h
rename to exercises/practice/allergies/src/example.h
diff --git a/exercises/allergies/test/test_allergies.c b/exercises/practice/allergies/test/test_allergies.c
similarity index 100%
rename from exercises/allergies/test/test_allergies.c
rename to exercises/practice/allergies/test/test_allergies.c
diff --git a/exercises/allergies/test/vendor/unity.c b/exercises/practice/allergies/test/vendor/unity.c
similarity index 100%
rename from exercises/allergies/test/vendor/unity.c
rename to exercises/practice/allergies/test/vendor/unity.c
diff --git a/exercises/allergies/test/vendor/unity.h b/exercises/practice/allergies/test/vendor/unity.h
similarity index 100%
rename from exercises/allergies/test/vendor/unity.h
rename to exercises/practice/allergies/test/vendor/unity.h
diff --git a/exercises/allergies/test/vendor/unity_internals.h b/exercises/practice/allergies/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/allergies/test/vendor/unity_internals.h
rename to exercises/practice/allergies/test/vendor/unity_internals.h
diff --git a/exercises/anagram/.meta/tests.toml b/exercises/practice/anagram/.meta/tests.toml
similarity index 100%
rename from exercises/anagram/.meta/tests.toml
rename to exercises/practice/anagram/.meta/tests.toml
diff --git a/exercises/anagram/README.md b/exercises/practice/anagram/README.md
similarity index 100%
rename from exercises/anagram/README.md
rename to exercises/practice/anagram/README.md
diff --git a/exercises/anagram/makefile b/exercises/practice/anagram/makefile
similarity index 100%
rename from exercises/anagram/makefile
rename to exercises/practice/anagram/makefile
diff --git a/exercises/anagram/src/anagram.c b/exercises/practice/anagram/src/anagram.c
similarity index 100%
rename from exercises/anagram/src/anagram.c
rename to exercises/practice/anagram/src/anagram.c
diff --git a/exercises/anagram/src/anagram.h b/exercises/practice/anagram/src/anagram.h
similarity index 100%
rename from exercises/anagram/src/anagram.h
rename to exercises/practice/anagram/src/anagram.h
diff --git a/exercises/anagram/src/example.c b/exercises/practice/anagram/src/example.c
similarity index 100%
rename from exercises/anagram/src/example.c
rename to exercises/practice/anagram/src/example.c
diff --git a/exercises/anagram/test/test_anagram.c b/exercises/practice/anagram/test/test_anagram.c
similarity index 100%
rename from exercises/anagram/test/test_anagram.c
rename to exercises/practice/anagram/test/test_anagram.c
diff --git a/exercises/anagram/test/vendor/unity.c b/exercises/practice/anagram/test/vendor/unity.c
similarity index 100%
rename from exercises/anagram/test/vendor/unity.c
rename to exercises/practice/anagram/test/vendor/unity.c
diff --git a/exercises/anagram/test/vendor/unity.h b/exercises/practice/anagram/test/vendor/unity.h
similarity index 100%
rename from exercises/anagram/test/vendor/unity.h
rename to exercises/practice/anagram/test/vendor/unity.h
diff --git a/exercises/anagram/test/vendor/unity_internals.h b/exercises/practice/anagram/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/anagram/test/vendor/unity_internals.h
rename to exercises/practice/anagram/test/vendor/unity_internals.h
diff --git a/exercises/armstrong-numbers/.meta/tests.toml b/exercises/practice/armstrong-numbers/.meta/tests.toml
similarity index 100%
rename from exercises/armstrong-numbers/.meta/tests.toml
rename to exercises/practice/armstrong-numbers/.meta/tests.toml
diff --git a/exercises/armstrong-numbers/README.md b/exercises/practice/armstrong-numbers/README.md
similarity index 100%
rename from exercises/armstrong-numbers/README.md
rename to exercises/practice/armstrong-numbers/README.md
diff --git a/exercises/armstrong-numbers/makefile b/exercises/practice/armstrong-numbers/makefile
similarity index 100%
rename from exercises/armstrong-numbers/makefile
rename to exercises/practice/armstrong-numbers/makefile
diff --git a/exercises/armstrong-numbers/src/armstrong_numbers.c b/exercises/practice/armstrong-numbers/src/armstrong_numbers.c
similarity index 100%
rename from exercises/armstrong-numbers/src/armstrong_numbers.c
rename to exercises/practice/armstrong-numbers/src/armstrong_numbers.c
diff --git a/exercises/armstrong-numbers/src/armstrong_numbers.h b/exercises/practice/armstrong-numbers/src/armstrong_numbers.h
similarity index 100%
rename from exercises/armstrong-numbers/src/armstrong_numbers.h
rename to exercises/practice/armstrong-numbers/src/armstrong_numbers.h
diff --git a/exercises/armstrong-numbers/src/example.c b/exercises/practice/armstrong-numbers/src/example.c
similarity index 100%
rename from exercises/armstrong-numbers/src/example.c
rename to exercises/practice/armstrong-numbers/src/example.c
diff --git a/exercises/armstrong-numbers/src/example.h b/exercises/practice/armstrong-numbers/src/example.h
similarity index 100%
rename from exercises/armstrong-numbers/src/example.h
rename to exercises/practice/armstrong-numbers/src/example.h
diff --git a/exercises/armstrong-numbers/test/test_armstrong_numbers.c b/exercises/practice/armstrong-numbers/test/test_armstrong_numbers.c
similarity index 100%
rename from exercises/armstrong-numbers/test/test_armstrong_numbers.c
rename to exercises/practice/armstrong-numbers/test/test_armstrong_numbers.c
diff --git a/exercises/armstrong-numbers/test/vendor/unity.c b/exercises/practice/armstrong-numbers/test/vendor/unity.c
similarity index 100%
rename from exercises/armstrong-numbers/test/vendor/unity.c
rename to exercises/practice/armstrong-numbers/test/vendor/unity.c
diff --git a/exercises/armstrong-numbers/test/vendor/unity.h b/exercises/practice/armstrong-numbers/test/vendor/unity.h
similarity index 100%
rename from exercises/armstrong-numbers/test/vendor/unity.h
rename to exercises/practice/armstrong-numbers/test/vendor/unity.h
diff --git a/exercises/armstrong-numbers/test/vendor/unity_internals.h b/exercises/practice/armstrong-numbers/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/armstrong-numbers/test/vendor/unity_internals.h
rename to exercises/practice/armstrong-numbers/test/vendor/unity_internals.h
diff --git a/exercises/atbash-cipher/.meta/tests.toml b/exercises/practice/atbash-cipher/.meta/tests.toml
similarity index 100%
rename from exercises/atbash-cipher/.meta/tests.toml
rename to exercises/practice/atbash-cipher/.meta/tests.toml
diff --git a/exercises/atbash-cipher/README.md b/exercises/practice/atbash-cipher/README.md
similarity index 100%
rename from exercises/atbash-cipher/README.md
rename to exercises/practice/atbash-cipher/README.md
diff --git a/exercises/atbash-cipher/makefile b/exercises/practice/atbash-cipher/makefile
similarity index 100%
rename from exercises/atbash-cipher/makefile
rename to exercises/practice/atbash-cipher/makefile
diff --git a/exercises/atbash-cipher/src/atbash_cipher.c b/exercises/practice/atbash-cipher/src/atbash_cipher.c
similarity index 100%
rename from exercises/atbash-cipher/src/atbash_cipher.c
rename to exercises/practice/atbash-cipher/src/atbash_cipher.c
diff --git a/exercises/atbash-cipher/src/atbash_cipher.h b/exercises/practice/atbash-cipher/src/atbash_cipher.h
similarity index 100%
rename from exercises/atbash-cipher/src/atbash_cipher.h
rename to exercises/practice/atbash-cipher/src/atbash_cipher.h
diff --git a/exercises/atbash-cipher/src/example.c b/exercises/practice/atbash-cipher/src/example.c
similarity index 100%
rename from exercises/atbash-cipher/src/example.c
rename to exercises/practice/atbash-cipher/src/example.c
diff --git a/exercises/atbash-cipher/src/example.h b/exercises/practice/atbash-cipher/src/example.h
similarity index 100%
rename from exercises/atbash-cipher/src/example.h
rename to exercises/practice/atbash-cipher/src/example.h
diff --git a/exercises/atbash-cipher/test/test_atbash_cipher.c b/exercises/practice/atbash-cipher/test/test_atbash_cipher.c
similarity index 100%
rename from exercises/atbash-cipher/test/test_atbash_cipher.c
rename to exercises/practice/atbash-cipher/test/test_atbash_cipher.c
diff --git a/exercises/atbash-cipher/test/vendor/unity.c b/exercises/practice/atbash-cipher/test/vendor/unity.c
similarity index 100%
rename from exercises/atbash-cipher/test/vendor/unity.c
rename to exercises/practice/atbash-cipher/test/vendor/unity.c
diff --git a/exercises/atbash-cipher/test/vendor/unity.h b/exercises/practice/atbash-cipher/test/vendor/unity.h
similarity index 100%
rename from exercises/atbash-cipher/test/vendor/unity.h
rename to exercises/practice/atbash-cipher/test/vendor/unity.h
diff --git a/exercises/atbash-cipher/test/vendor/unity_internals.h b/exercises/practice/atbash-cipher/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/atbash-cipher/test/vendor/unity_internals.h
rename to exercises/practice/atbash-cipher/test/vendor/unity_internals.h
diff --git a/exercises/beer-song/.meta/tests.toml b/exercises/practice/beer-song/.meta/tests.toml
similarity index 100%
rename from exercises/beer-song/.meta/tests.toml
rename to exercises/practice/beer-song/.meta/tests.toml
diff --git a/exercises/beer-song/README.md b/exercises/practice/beer-song/README.md
similarity index 100%
rename from exercises/beer-song/README.md
rename to exercises/practice/beer-song/README.md
diff --git a/exercises/beer-song/makefile b/exercises/practice/beer-song/makefile
similarity index 100%
rename from exercises/beer-song/makefile
rename to exercises/practice/beer-song/makefile
diff --git a/exercises/beer-song/src/beer_song.c b/exercises/practice/beer-song/src/beer_song.c
similarity index 100%
rename from exercises/beer-song/src/beer_song.c
rename to exercises/practice/beer-song/src/beer_song.c
diff --git a/exercises/beer-song/src/beer_song.h b/exercises/practice/beer-song/src/beer_song.h
similarity index 100%
rename from exercises/beer-song/src/beer_song.h
rename to exercises/practice/beer-song/src/beer_song.h
diff --git a/exercises/beer-song/src/example.c b/exercises/practice/beer-song/src/example.c
similarity index 100%
rename from exercises/beer-song/src/example.c
rename to exercises/practice/beer-song/src/example.c
diff --git a/exercises/beer-song/src/example.h b/exercises/practice/beer-song/src/example.h
similarity index 100%
rename from exercises/beer-song/src/example.h
rename to exercises/practice/beer-song/src/example.h
diff --git a/exercises/beer-song/test/test_beer_song.c b/exercises/practice/beer-song/test/test_beer_song.c
similarity index 100%
rename from exercises/beer-song/test/test_beer_song.c
rename to exercises/practice/beer-song/test/test_beer_song.c
diff --git a/exercises/beer-song/test/vendor/unity.c b/exercises/practice/beer-song/test/vendor/unity.c
similarity index 100%
rename from exercises/beer-song/test/vendor/unity.c
rename to exercises/practice/beer-song/test/vendor/unity.c
diff --git a/exercises/beer-song/test/vendor/unity.h b/exercises/practice/beer-song/test/vendor/unity.h
similarity index 100%
rename from exercises/beer-song/test/vendor/unity.h
rename to exercises/practice/beer-song/test/vendor/unity.h
diff --git a/exercises/beer-song/test/vendor/unity_internals.h b/exercises/practice/beer-song/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/beer-song/test/vendor/unity_internals.h
rename to exercises/practice/beer-song/test/vendor/unity_internals.h
diff --git a/exercises/binary-search-tree/.meta/tests.toml b/exercises/practice/binary-search-tree/.meta/tests.toml
similarity index 100%
rename from exercises/binary-search-tree/.meta/tests.toml
rename to exercises/practice/binary-search-tree/.meta/tests.toml
diff --git a/exercises/binary-search-tree/README.md b/exercises/practice/binary-search-tree/README.md
similarity index 100%
rename from exercises/binary-search-tree/README.md
rename to exercises/practice/binary-search-tree/README.md
diff --git a/exercises/binary-search-tree/makefile b/exercises/practice/binary-search-tree/makefile
similarity index 100%
rename from exercises/binary-search-tree/makefile
rename to exercises/practice/binary-search-tree/makefile
diff --git a/exercises/binary-search-tree/src/binary_search_tree.c b/exercises/practice/binary-search-tree/src/binary_search_tree.c
similarity index 100%
rename from exercises/binary-search-tree/src/binary_search_tree.c
rename to exercises/practice/binary-search-tree/src/binary_search_tree.c
diff --git a/exercises/binary-search-tree/src/binary_search_tree.h b/exercises/practice/binary-search-tree/src/binary_search_tree.h
similarity index 100%
rename from exercises/binary-search-tree/src/binary_search_tree.h
rename to exercises/practice/binary-search-tree/src/binary_search_tree.h
diff --git a/exercises/binary-search-tree/src/example.c b/exercises/practice/binary-search-tree/src/example.c
similarity index 100%
rename from exercises/binary-search-tree/src/example.c
rename to exercises/practice/binary-search-tree/src/example.c
diff --git a/exercises/binary-search-tree/src/example.h b/exercises/practice/binary-search-tree/src/example.h
similarity index 100%
rename from exercises/binary-search-tree/src/example.h
rename to exercises/practice/binary-search-tree/src/example.h
diff --git a/exercises/binary-search-tree/test/test_binary_search_tree.c b/exercises/practice/binary-search-tree/test/test_binary_search_tree.c
similarity index 100%
rename from exercises/binary-search-tree/test/test_binary_search_tree.c
rename to exercises/practice/binary-search-tree/test/test_binary_search_tree.c
diff --git a/exercises/binary-search-tree/test/vendor/unity.c b/exercises/practice/binary-search-tree/test/vendor/unity.c
similarity index 100%
rename from exercises/binary-search-tree/test/vendor/unity.c
rename to exercises/practice/binary-search-tree/test/vendor/unity.c
diff --git a/exercises/binary-search-tree/test/vendor/unity.h b/exercises/practice/binary-search-tree/test/vendor/unity.h
similarity index 100%
rename from exercises/binary-search-tree/test/vendor/unity.h
rename to exercises/practice/binary-search-tree/test/vendor/unity.h
diff --git a/exercises/binary-search-tree/test/vendor/unity_internals.h b/exercises/practice/binary-search-tree/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/binary-search-tree/test/vendor/unity_internals.h
rename to exercises/practice/binary-search-tree/test/vendor/unity_internals.h
diff --git a/exercises/binary-search/.meta/tests.toml b/exercises/practice/binary-search/.meta/tests.toml
similarity index 100%
rename from exercises/binary-search/.meta/tests.toml
rename to exercises/practice/binary-search/.meta/tests.toml
diff --git a/exercises/binary-search/README.md b/exercises/practice/binary-search/README.md
similarity index 100%
rename from exercises/binary-search/README.md
rename to exercises/practice/binary-search/README.md
diff --git a/exercises/binary-search/makefile b/exercises/practice/binary-search/makefile
similarity index 100%
rename from exercises/binary-search/makefile
rename to exercises/practice/binary-search/makefile
diff --git a/exercises/binary-search/src/binary_search.c b/exercises/practice/binary-search/src/binary_search.c
similarity index 100%
rename from exercises/binary-search/src/binary_search.c
rename to exercises/practice/binary-search/src/binary_search.c
diff --git a/exercises/binary-search/src/binary_search.h b/exercises/practice/binary-search/src/binary_search.h
similarity index 100%
rename from exercises/binary-search/src/binary_search.h
rename to exercises/practice/binary-search/src/binary_search.h
diff --git a/exercises/binary-search/src/example.c b/exercises/practice/binary-search/src/example.c
similarity index 100%
rename from exercises/binary-search/src/example.c
rename to exercises/practice/binary-search/src/example.c
diff --git a/exercises/binary-search/src/example.h b/exercises/practice/binary-search/src/example.h
similarity index 100%
rename from exercises/binary-search/src/example.h
rename to exercises/practice/binary-search/src/example.h
diff --git a/exercises/binary-search/test/test_binary_search.c b/exercises/practice/binary-search/test/test_binary_search.c
similarity index 100%
rename from exercises/binary-search/test/test_binary_search.c
rename to exercises/practice/binary-search/test/test_binary_search.c
diff --git a/exercises/binary-search/test/vendor/unity.c b/exercises/practice/binary-search/test/vendor/unity.c
similarity index 100%
rename from exercises/binary-search/test/vendor/unity.c
rename to exercises/practice/binary-search/test/vendor/unity.c
diff --git a/exercises/binary-search/test/vendor/unity.h b/exercises/practice/binary-search/test/vendor/unity.h
similarity index 100%
rename from exercises/binary-search/test/vendor/unity.h
rename to exercises/practice/binary-search/test/vendor/unity.h
diff --git a/exercises/binary-search/test/vendor/unity_internals.h b/exercises/practice/binary-search/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/binary-search/test/vendor/unity_internals.h
rename to exercises/practice/binary-search/test/vendor/unity_internals.h
diff --git a/exercises/binary/.meta/tests.toml b/exercises/practice/binary/.meta/tests.toml
similarity index 100%
rename from exercises/binary/.meta/tests.toml
rename to exercises/practice/binary/.meta/tests.toml
diff --git a/exercises/binary/README.md b/exercises/practice/binary/README.md
similarity index 100%
rename from exercises/binary/README.md
rename to exercises/practice/binary/README.md
diff --git a/exercises/binary/makefile b/exercises/practice/binary/makefile
similarity index 100%
rename from exercises/binary/makefile
rename to exercises/practice/binary/makefile
diff --git a/exercises/binary/src/binary.c b/exercises/practice/binary/src/binary.c
similarity index 100%
rename from exercises/binary/src/binary.c
rename to exercises/practice/binary/src/binary.c
diff --git a/exercises/binary/src/binary.h b/exercises/practice/binary/src/binary.h
similarity index 100%
rename from exercises/binary/src/binary.h
rename to exercises/practice/binary/src/binary.h
diff --git a/exercises/binary/src/example.c b/exercises/practice/binary/src/example.c
similarity index 100%
rename from exercises/binary/src/example.c
rename to exercises/practice/binary/src/example.c
diff --git a/exercises/binary/src/example.h b/exercises/practice/binary/src/example.h
similarity index 100%
rename from exercises/binary/src/example.h
rename to exercises/practice/binary/src/example.h
diff --git a/exercises/binary/test/test_binary.c b/exercises/practice/binary/test/test_binary.c
similarity index 100%
rename from exercises/binary/test/test_binary.c
rename to exercises/practice/binary/test/test_binary.c
diff --git a/exercises/binary/test/vendor/unity.c b/exercises/practice/binary/test/vendor/unity.c
similarity index 100%
rename from exercises/binary/test/vendor/unity.c
rename to exercises/practice/binary/test/vendor/unity.c
diff --git a/exercises/binary/test/vendor/unity.h b/exercises/practice/binary/test/vendor/unity.h
similarity index 100%
rename from exercises/binary/test/vendor/unity.h
rename to exercises/practice/binary/test/vendor/unity.h
diff --git a/exercises/binary/test/vendor/unity_internals.h b/exercises/practice/binary/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/binary/test/vendor/unity_internals.h
rename to exercises/practice/binary/test/vendor/unity_internals.h
diff --git a/exercises/bob/.meta/tests.toml b/exercises/practice/bob/.meta/tests.toml
similarity index 100%
rename from exercises/bob/.meta/tests.toml
rename to exercises/practice/bob/.meta/tests.toml
diff --git a/exercises/bob/README.md b/exercises/practice/bob/README.md
similarity index 100%
rename from exercises/bob/README.md
rename to exercises/practice/bob/README.md
diff --git a/exercises/bob/makefile b/exercises/practice/bob/makefile
similarity index 100%
rename from exercises/bob/makefile
rename to exercises/practice/bob/makefile
diff --git a/exercises/bob/src/bob.c b/exercises/practice/bob/src/bob.c
similarity index 100%
rename from exercises/bob/src/bob.c
rename to exercises/practice/bob/src/bob.c
diff --git a/exercises/bob/src/bob.h b/exercises/practice/bob/src/bob.h
similarity index 100%
rename from exercises/bob/src/bob.h
rename to exercises/practice/bob/src/bob.h
diff --git a/exercises/bob/src/example.c b/exercises/practice/bob/src/example.c
similarity index 100%
rename from exercises/bob/src/example.c
rename to exercises/practice/bob/src/example.c
diff --git a/exercises/bob/src/example.h b/exercises/practice/bob/src/example.h
similarity index 100%
rename from exercises/bob/src/example.h
rename to exercises/practice/bob/src/example.h
diff --git a/exercises/bob/test/test_bob.c b/exercises/practice/bob/test/test_bob.c
similarity index 100%
rename from exercises/bob/test/test_bob.c
rename to exercises/practice/bob/test/test_bob.c
diff --git a/exercises/bob/test/vendor/unity.c b/exercises/practice/bob/test/vendor/unity.c
similarity index 100%
rename from exercises/bob/test/vendor/unity.c
rename to exercises/practice/bob/test/vendor/unity.c
diff --git a/exercises/bob/test/vendor/unity.h b/exercises/practice/bob/test/vendor/unity.h
similarity index 100%
rename from exercises/bob/test/vendor/unity.h
rename to exercises/practice/bob/test/vendor/unity.h
diff --git a/exercises/bob/test/vendor/unity_internals.h b/exercises/practice/bob/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/bob/test/vendor/unity_internals.h
rename to exercises/practice/bob/test/vendor/unity_internals.h
diff --git a/exercises/circular-buffer/.meta/tests.toml b/exercises/practice/circular-buffer/.meta/tests.toml
similarity index 100%
rename from exercises/circular-buffer/.meta/tests.toml
rename to exercises/practice/circular-buffer/.meta/tests.toml
diff --git a/exercises/circular-buffer/README.md b/exercises/practice/circular-buffer/README.md
similarity index 100%
rename from exercises/circular-buffer/README.md
rename to exercises/practice/circular-buffer/README.md
diff --git a/exercises/circular-buffer/makefile b/exercises/practice/circular-buffer/makefile
similarity index 100%
rename from exercises/circular-buffer/makefile
rename to exercises/practice/circular-buffer/makefile
diff --git a/exercises/circular-buffer/src/circular_buffer.c b/exercises/practice/circular-buffer/src/circular_buffer.c
similarity index 100%
rename from exercises/circular-buffer/src/circular_buffer.c
rename to exercises/practice/circular-buffer/src/circular_buffer.c
diff --git a/exercises/circular-buffer/src/circular_buffer.h b/exercises/practice/circular-buffer/src/circular_buffer.h
similarity index 100%
rename from exercises/circular-buffer/src/circular_buffer.h
rename to exercises/practice/circular-buffer/src/circular_buffer.h
diff --git a/exercises/circular-buffer/src/example.c b/exercises/practice/circular-buffer/src/example.c
similarity index 100%
rename from exercises/circular-buffer/src/example.c
rename to exercises/practice/circular-buffer/src/example.c
diff --git a/exercises/circular-buffer/src/example.h b/exercises/practice/circular-buffer/src/example.h
similarity index 100%
rename from exercises/circular-buffer/src/example.h
rename to exercises/practice/circular-buffer/src/example.h
diff --git a/exercises/circular-buffer/test/test_circular_buffer.c b/exercises/practice/circular-buffer/test/test_circular_buffer.c
similarity index 100%
rename from exercises/circular-buffer/test/test_circular_buffer.c
rename to exercises/practice/circular-buffer/test/test_circular_buffer.c
diff --git a/exercises/circular-buffer/test/vendor/unity.c b/exercises/practice/circular-buffer/test/vendor/unity.c
similarity index 100%
rename from exercises/circular-buffer/test/vendor/unity.c
rename to exercises/practice/circular-buffer/test/vendor/unity.c
diff --git a/exercises/circular-buffer/test/vendor/unity.h b/exercises/practice/circular-buffer/test/vendor/unity.h
similarity index 100%
rename from exercises/circular-buffer/test/vendor/unity.h
rename to exercises/practice/circular-buffer/test/vendor/unity.h
diff --git a/exercises/circular-buffer/test/vendor/unity_internals.h b/exercises/practice/circular-buffer/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/circular-buffer/test/vendor/unity_internals.h
rename to exercises/practice/circular-buffer/test/vendor/unity_internals.h
diff --git a/exercises/clock/.meta/tests.toml b/exercises/practice/clock/.meta/tests.toml
similarity index 100%
rename from exercises/clock/.meta/tests.toml
rename to exercises/practice/clock/.meta/tests.toml
diff --git a/exercises/clock/README.md b/exercises/practice/clock/README.md
similarity index 100%
rename from exercises/clock/README.md
rename to exercises/practice/clock/README.md
diff --git a/exercises/clock/makefile b/exercises/practice/clock/makefile
similarity index 100%
rename from exercises/clock/makefile
rename to exercises/practice/clock/makefile
diff --git a/exercises/clock/src/clock.c b/exercises/practice/clock/src/clock.c
similarity index 100%
rename from exercises/clock/src/clock.c
rename to exercises/practice/clock/src/clock.c
diff --git a/exercises/clock/src/clock.h b/exercises/practice/clock/src/clock.h
similarity index 100%
rename from exercises/clock/src/clock.h
rename to exercises/practice/clock/src/clock.h
diff --git a/exercises/clock/src/example.c b/exercises/practice/clock/src/example.c
similarity index 100%
rename from exercises/clock/src/example.c
rename to exercises/practice/clock/src/example.c
diff --git a/exercises/clock/test/test_clock.c b/exercises/practice/clock/test/test_clock.c
similarity index 100%
rename from exercises/clock/test/test_clock.c
rename to exercises/practice/clock/test/test_clock.c
diff --git a/exercises/clock/test/vendor/unity.c b/exercises/practice/clock/test/vendor/unity.c
similarity index 100%
rename from exercises/clock/test/vendor/unity.c
rename to exercises/practice/clock/test/vendor/unity.c
diff --git a/exercises/clock/test/vendor/unity.h b/exercises/practice/clock/test/vendor/unity.h
similarity index 100%
rename from exercises/clock/test/vendor/unity.h
rename to exercises/practice/clock/test/vendor/unity.h
diff --git a/exercises/clock/test/vendor/unity_internals.h b/exercises/practice/clock/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/clock/test/vendor/unity_internals.h
rename to exercises/practice/clock/test/vendor/unity_internals.h
diff --git a/exercises/collatz-conjecture/.meta/tests.toml b/exercises/practice/collatz-conjecture/.meta/tests.toml
similarity index 100%
rename from exercises/collatz-conjecture/.meta/tests.toml
rename to exercises/practice/collatz-conjecture/.meta/tests.toml
diff --git a/exercises/collatz-conjecture/README.md b/exercises/practice/collatz-conjecture/README.md
similarity index 100%
rename from exercises/collatz-conjecture/README.md
rename to exercises/practice/collatz-conjecture/README.md
diff --git a/exercises/collatz-conjecture/makefile b/exercises/practice/collatz-conjecture/makefile
similarity index 100%
rename from exercises/collatz-conjecture/makefile
rename to exercises/practice/collatz-conjecture/makefile
diff --git a/exercises/collatz-conjecture/src/collatz_conjecture.c b/exercises/practice/collatz-conjecture/src/collatz_conjecture.c
similarity index 100%
rename from exercises/collatz-conjecture/src/collatz_conjecture.c
rename to exercises/practice/collatz-conjecture/src/collatz_conjecture.c
diff --git a/exercises/collatz-conjecture/src/collatz_conjecture.h b/exercises/practice/collatz-conjecture/src/collatz_conjecture.h
similarity index 100%
rename from exercises/collatz-conjecture/src/collatz_conjecture.h
rename to exercises/practice/collatz-conjecture/src/collatz_conjecture.h
diff --git a/exercises/collatz-conjecture/src/example.c b/exercises/practice/collatz-conjecture/src/example.c
similarity index 100%
rename from exercises/collatz-conjecture/src/example.c
rename to exercises/practice/collatz-conjecture/src/example.c
diff --git a/exercises/collatz-conjecture/test/test_collatz_conjecture.c b/exercises/practice/collatz-conjecture/test/test_collatz_conjecture.c
similarity index 100%
rename from exercises/collatz-conjecture/test/test_collatz_conjecture.c
rename to exercises/practice/collatz-conjecture/test/test_collatz_conjecture.c
diff --git a/exercises/collatz-conjecture/test/vendor/unity.c b/exercises/practice/collatz-conjecture/test/vendor/unity.c
similarity index 100%
rename from exercises/collatz-conjecture/test/vendor/unity.c
rename to exercises/practice/collatz-conjecture/test/vendor/unity.c
diff --git a/exercises/collatz-conjecture/test/vendor/unity.h b/exercises/practice/collatz-conjecture/test/vendor/unity.h
similarity index 100%
rename from exercises/collatz-conjecture/test/vendor/unity.h
rename to exercises/practice/collatz-conjecture/test/vendor/unity.h
diff --git a/exercises/collatz-conjecture/test/vendor/unity_internals.h b/exercises/practice/collatz-conjecture/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/collatz-conjecture/test/vendor/unity_internals.h
rename to exercises/practice/collatz-conjecture/test/vendor/unity_internals.h
diff --git a/exercises/complex-numbers/.meta/tests.toml b/exercises/practice/complex-numbers/.meta/tests.toml
similarity index 100%
rename from exercises/complex-numbers/.meta/tests.toml
rename to exercises/practice/complex-numbers/.meta/tests.toml
diff --git a/exercises/complex-numbers/README.md b/exercises/practice/complex-numbers/README.md
similarity index 100%
rename from exercises/complex-numbers/README.md
rename to exercises/practice/complex-numbers/README.md
diff --git a/exercises/complex-numbers/makefile b/exercises/practice/complex-numbers/makefile
similarity index 100%
rename from exercises/complex-numbers/makefile
rename to exercises/practice/complex-numbers/makefile
diff --git a/exercises/complex-numbers/src/complex_numbers.c b/exercises/practice/complex-numbers/src/complex_numbers.c
similarity index 100%
rename from exercises/complex-numbers/src/complex_numbers.c
rename to exercises/practice/complex-numbers/src/complex_numbers.c
diff --git a/exercises/complex-numbers/src/complex_numbers.h b/exercises/practice/complex-numbers/src/complex_numbers.h
similarity index 100%
rename from exercises/complex-numbers/src/complex_numbers.h
rename to exercises/practice/complex-numbers/src/complex_numbers.h
diff --git a/exercises/complex-numbers/src/example.c b/exercises/practice/complex-numbers/src/example.c
similarity index 100%
rename from exercises/complex-numbers/src/example.c
rename to exercises/practice/complex-numbers/src/example.c
diff --git a/exercises/complex-numbers/test/test_complex_numbers.c b/exercises/practice/complex-numbers/test/test_complex_numbers.c
similarity index 100%
rename from exercises/complex-numbers/test/test_complex_numbers.c
rename to exercises/practice/complex-numbers/test/test_complex_numbers.c
diff --git a/exercises/complex-numbers/test/vendor/unity.c b/exercises/practice/complex-numbers/test/vendor/unity.c
similarity index 100%
rename from exercises/complex-numbers/test/vendor/unity.c
rename to exercises/practice/complex-numbers/test/vendor/unity.c
diff --git a/exercises/complex-numbers/test/vendor/unity.h b/exercises/practice/complex-numbers/test/vendor/unity.h
similarity index 100%
rename from exercises/complex-numbers/test/vendor/unity.h
rename to exercises/practice/complex-numbers/test/vendor/unity.h
diff --git a/exercises/complex-numbers/test/vendor/unity_internals.h b/exercises/practice/complex-numbers/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/complex-numbers/test/vendor/unity_internals.h
rename to exercises/practice/complex-numbers/test/vendor/unity_internals.h
diff --git a/exercises/crypto-square/.meta/tests.toml b/exercises/practice/crypto-square/.meta/tests.toml
similarity index 100%
rename from exercises/crypto-square/.meta/tests.toml
rename to exercises/practice/crypto-square/.meta/tests.toml
diff --git a/exercises/crypto-square/README.md b/exercises/practice/crypto-square/README.md
similarity index 100%
rename from exercises/crypto-square/README.md
rename to exercises/practice/crypto-square/README.md
diff --git a/exercises/crypto-square/makefile b/exercises/practice/crypto-square/makefile
similarity index 100%
rename from exercises/crypto-square/makefile
rename to exercises/practice/crypto-square/makefile
diff --git a/exercises/crypto-square/src/crypto_square.c b/exercises/practice/crypto-square/src/crypto_square.c
similarity index 100%
rename from exercises/crypto-square/src/crypto_square.c
rename to exercises/practice/crypto-square/src/crypto_square.c
diff --git a/exercises/crypto-square/src/crypto_square.h b/exercises/practice/crypto-square/src/crypto_square.h
similarity index 100%
rename from exercises/crypto-square/src/crypto_square.h
rename to exercises/practice/crypto-square/src/crypto_square.h
diff --git a/exercises/crypto-square/src/example.c b/exercises/practice/crypto-square/src/example.c
similarity index 100%
rename from exercises/crypto-square/src/example.c
rename to exercises/practice/crypto-square/src/example.c
diff --git a/exercises/crypto-square/src/example.h b/exercises/practice/crypto-square/src/example.h
similarity index 100%
rename from exercises/crypto-square/src/example.h
rename to exercises/practice/crypto-square/src/example.h
diff --git a/exercises/crypto-square/test/test_crypto_square.c b/exercises/practice/crypto-square/test/test_crypto_square.c
similarity index 100%
rename from exercises/crypto-square/test/test_crypto_square.c
rename to exercises/practice/crypto-square/test/test_crypto_square.c
diff --git a/exercises/crypto-square/test/vendor/unity.c b/exercises/practice/crypto-square/test/vendor/unity.c
similarity index 100%
rename from exercises/crypto-square/test/vendor/unity.c
rename to exercises/practice/crypto-square/test/vendor/unity.c
diff --git a/exercises/crypto-square/test/vendor/unity.h b/exercises/practice/crypto-square/test/vendor/unity.h
similarity index 100%
rename from exercises/crypto-square/test/vendor/unity.h
rename to exercises/practice/crypto-square/test/vendor/unity.h
diff --git a/exercises/crypto-square/test/vendor/unity_internals.h b/exercises/practice/crypto-square/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/crypto-square/test/vendor/unity_internals.h
rename to exercises/practice/crypto-square/test/vendor/unity_internals.h
diff --git a/exercises/darts/.meta/tests.toml b/exercises/practice/darts/.meta/tests.toml
similarity index 100%
rename from exercises/darts/.meta/tests.toml
rename to exercises/practice/darts/.meta/tests.toml
diff --git a/exercises/darts/README.md b/exercises/practice/darts/README.md
similarity index 100%
rename from exercises/darts/README.md
rename to exercises/practice/darts/README.md
diff --git a/exercises/darts/makefile b/exercises/practice/darts/makefile
similarity index 100%
rename from exercises/darts/makefile
rename to exercises/practice/darts/makefile
diff --git a/exercises/darts/src/darts.c b/exercises/practice/darts/src/darts.c
similarity index 100%
rename from exercises/darts/src/darts.c
rename to exercises/practice/darts/src/darts.c
diff --git a/exercises/darts/src/darts.h b/exercises/practice/darts/src/darts.h
similarity index 100%
rename from exercises/darts/src/darts.h
rename to exercises/practice/darts/src/darts.h
diff --git a/exercises/darts/src/example.c b/exercises/practice/darts/src/example.c
similarity index 100%
rename from exercises/darts/src/example.c
rename to exercises/practice/darts/src/example.c
diff --git a/exercises/darts/src/example.h b/exercises/practice/darts/src/example.h
similarity index 100%
rename from exercises/darts/src/example.h
rename to exercises/practice/darts/src/example.h
diff --git a/exercises/darts/test/test_darts.c b/exercises/practice/darts/test/test_darts.c
similarity index 100%
rename from exercises/darts/test/test_darts.c
rename to exercises/practice/darts/test/test_darts.c
diff --git a/exercises/darts/test/vendor/unity.c b/exercises/practice/darts/test/vendor/unity.c
similarity index 100%
rename from exercises/darts/test/vendor/unity.c
rename to exercises/practice/darts/test/vendor/unity.c
diff --git a/exercises/darts/test/vendor/unity.h b/exercises/practice/darts/test/vendor/unity.h
similarity index 100%
rename from exercises/darts/test/vendor/unity.h
rename to exercises/practice/darts/test/vendor/unity.h
diff --git a/exercises/darts/test/vendor/unity_internals.h b/exercises/practice/darts/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/darts/test/vendor/unity_internals.h
rename to exercises/practice/darts/test/vendor/unity_internals.h
diff --git a/exercises/diamond/.meta/tests.toml b/exercises/practice/diamond/.meta/tests.toml
similarity index 100%
rename from exercises/diamond/.meta/tests.toml
rename to exercises/practice/diamond/.meta/tests.toml
diff --git a/exercises/diamond/README.md b/exercises/practice/diamond/README.md
similarity index 100%
rename from exercises/diamond/README.md
rename to exercises/practice/diamond/README.md
diff --git a/exercises/diamond/makefile b/exercises/practice/diamond/makefile
similarity index 100%
rename from exercises/diamond/makefile
rename to exercises/practice/diamond/makefile
diff --git a/exercises/diamond/src/diamond.c b/exercises/practice/diamond/src/diamond.c
similarity index 100%
rename from exercises/diamond/src/diamond.c
rename to exercises/practice/diamond/src/diamond.c
diff --git a/exercises/diamond/src/diamond.h b/exercises/practice/diamond/src/diamond.h
similarity index 100%
rename from exercises/diamond/src/diamond.h
rename to exercises/practice/diamond/src/diamond.h
diff --git a/exercises/diamond/src/example.c b/exercises/practice/diamond/src/example.c
similarity index 100%
rename from exercises/diamond/src/example.c
rename to exercises/practice/diamond/src/example.c
diff --git a/exercises/diamond/src/example.h b/exercises/practice/diamond/src/example.h
similarity index 100%
rename from exercises/diamond/src/example.h
rename to exercises/practice/diamond/src/example.h
diff --git a/exercises/diamond/test/test_diamond.c b/exercises/practice/diamond/test/test_diamond.c
similarity index 100%
rename from exercises/diamond/test/test_diamond.c
rename to exercises/practice/diamond/test/test_diamond.c
diff --git a/exercises/diamond/test/vendor/unity.c b/exercises/practice/diamond/test/vendor/unity.c
similarity index 100%
rename from exercises/diamond/test/vendor/unity.c
rename to exercises/practice/diamond/test/vendor/unity.c
diff --git a/exercises/diamond/test/vendor/unity.h b/exercises/practice/diamond/test/vendor/unity.h
similarity index 100%
rename from exercises/diamond/test/vendor/unity.h
rename to exercises/practice/diamond/test/vendor/unity.h
diff --git a/exercises/diamond/test/vendor/unity_internals.h b/exercises/practice/diamond/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/diamond/test/vendor/unity_internals.h
rename to exercises/practice/diamond/test/vendor/unity_internals.h
diff --git a/exercises/difference-of-squares/.meta/tests.toml b/exercises/practice/difference-of-squares/.meta/tests.toml
similarity index 100%
rename from exercises/difference-of-squares/.meta/tests.toml
rename to exercises/practice/difference-of-squares/.meta/tests.toml
diff --git a/exercises/difference-of-squares/README.md b/exercises/practice/difference-of-squares/README.md
similarity index 100%
rename from exercises/difference-of-squares/README.md
rename to exercises/practice/difference-of-squares/README.md
diff --git a/exercises/difference-of-squares/makefile b/exercises/practice/difference-of-squares/makefile
similarity index 100%
rename from exercises/difference-of-squares/makefile
rename to exercises/practice/difference-of-squares/makefile
diff --git a/exercises/difference-of-squares/src/difference_of_squares.c b/exercises/practice/difference-of-squares/src/difference_of_squares.c
similarity index 100%
rename from exercises/difference-of-squares/src/difference_of_squares.c
rename to exercises/practice/difference-of-squares/src/difference_of_squares.c
diff --git a/exercises/difference-of-squares/src/difference_of_squares.h b/exercises/practice/difference-of-squares/src/difference_of_squares.h
similarity index 100%
rename from exercises/difference-of-squares/src/difference_of_squares.h
rename to exercises/practice/difference-of-squares/src/difference_of_squares.h
diff --git a/exercises/difference-of-squares/src/example.c b/exercises/practice/difference-of-squares/src/example.c
similarity index 100%
rename from exercises/difference-of-squares/src/example.c
rename to exercises/practice/difference-of-squares/src/example.c
diff --git a/exercises/difference-of-squares/src/example.h b/exercises/practice/difference-of-squares/src/example.h
similarity index 100%
rename from exercises/difference-of-squares/src/example.h
rename to exercises/practice/difference-of-squares/src/example.h
diff --git a/exercises/difference-of-squares/test/test_difference_of_squares.c b/exercises/practice/difference-of-squares/test/test_difference_of_squares.c
similarity index 100%
rename from exercises/difference-of-squares/test/test_difference_of_squares.c
rename to exercises/practice/difference-of-squares/test/test_difference_of_squares.c
diff --git a/exercises/difference-of-squares/test/vendor/unity.c b/exercises/practice/difference-of-squares/test/vendor/unity.c
similarity index 100%
rename from exercises/difference-of-squares/test/vendor/unity.c
rename to exercises/practice/difference-of-squares/test/vendor/unity.c
diff --git a/exercises/difference-of-squares/test/vendor/unity.h b/exercises/practice/difference-of-squares/test/vendor/unity.h
similarity index 100%
rename from exercises/difference-of-squares/test/vendor/unity.h
rename to exercises/practice/difference-of-squares/test/vendor/unity.h
diff --git a/exercises/difference-of-squares/test/vendor/unity_internals.h b/exercises/practice/difference-of-squares/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/difference-of-squares/test/vendor/unity_internals.h
rename to exercises/practice/difference-of-squares/test/vendor/unity_internals.h
diff --git a/exercises/etl/.meta/tests.toml b/exercises/practice/etl/.meta/tests.toml
similarity index 100%
rename from exercises/etl/.meta/tests.toml
rename to exercises/practice/etl/.meta/tests.toml
diff --git a/exercises/etl/README.md b/exercises/practice/etl/README.md
similarity index 100%
rename from exercises/etl/README.md
rename to exercises/practice/etl/README.md
diff --git a/exercises/etl/makefile b/exercises/practice/etl/makefile
similarity index 100%
rename from exercises/etl/makefile
rename to exercises/practice/etl/makefile
diff --git a/exercises/etl/src/etl.c b/exercises/practice/etl/src/etl.c
similarity index 100%
rename from exercises/etl/src/etl.c
rename to exercises/practice/etl/src/etl.c
diff --git a/exercises/etl/src/etl.h b/exercises/practice/etl/src/etl.h
similarity index 100%
rename from exercises/etl/src/etl.h
rename to exercises/practice/etl/src/etl.h
diff --git a/exercises/etl/src/example.c b/exercises/practice/etl/src/example.c
similarity index 100%
rename from exercises/etl/src/example.c
rename to exercises/practice/etl/src/example.c
diff --git a/exercises/etl/src/example.h b/exercises/practice/etl/src/example.h
similarity index 100%
rename from exercises/etl/src/example.h
rename to exercises/practice/etl/src/example.h
diff --git a/exercises/etl/test/test_etl.c b/exercises/practice/etl/test/test_etl.c
similarity index 100%
rename from exercises/etl/test/test_etl.c
rename to exercises/practice/etl/test/test_etl.c
diff --git a/exercises/etl/test/vendor/unity.c b/exercises/practice/etl/test/vendor/unity.c
similarity index 100%
rename from exercises/etl/test/vendor/unity.c
rename to exercises/practice/etl/test/vendor/unity.c
diff --git a/exercises/etl/test/vendor/unity.h b/exercises/practice/etl/test/vendor/unity.h
similarity index 100%
rename from exercises/etl/test/vendor/unity.h
rename to exercises/practice/etl/test/vendor/unity.h
diff --git a/exercises/etl/test/vendor/unity_internals.h b/exercises/practice/etl/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/etl/test/vendor/unity_internals.h
rename to exercises/practice/etl/test/vendor/unity_internals.h
diff --git a/exercises/gigasecond/.meta/tests.toml b/exercises/practice/gigasecond/.meta/tests.toml
similarity index 100%
rename from exercises/gigasecond/.meta/tests.toml
rename to exercises/practice/gigasecond/.meta/tests.toml
diff --git a/exercises/gigasecond/README.md b/exercises/practice/gigasecond/README.md
similarity index 100%
rename from exercises/gigasecond/README.md
rename to exercises/practice/gigasecond/README.md
diff --git a/exercises/gigasecond/makefile b/exercises/practice/gigasecond/makefile
similarity index 100%
rename from exercises/gigasecond/makefile
rename to exercises/practice/gigasecond/makefile
diff --git a/exercises/gigasecond/src/example.c b/exercises/practice/gigasecond/src/example.c
similarity index 100%
rename from exercises/gigasecond/src/example.c
rename to exercises/practice/gigasecond/src/example.c
diff --git a/exercises/gigasecond/src/example.h b/exercises/practice/gigasecond/src/example.h
similarity index 100%
rename from exercises/gigasecond/src/example.h
rename to exercises/practice/gigasecond/src/example.h
diff --git a/exercises/gigasecond/src/gigasecond.c b/exercises/practice/gigasecond/src/gigasecond.c
similarity index 100%
rename from exercises/gigasecond/src/gigasecond.c
rename to exercises/practice/gigasecond/src/gigasecond.c
diff --git a/exercises/gigasecond/src/gigasecond.h b/exercises/practice/gigasecond/src/gigasecond.h
similarity index 100%
rename from exercises/gigasecond/src/gigasecond.h
rename to exercises/practice/gigasecond/src/gigasecond.h
diff --git a/exercises/gigasecond/test/test_gigasecond.c b/exercises/practice/gigasecond/test/test_gigasecond.c
similarity index 100%
rename from exercises/gigasecond/test/test_gigasecond.c
rename to exercises/practice/gigasecond/test/test_gigasecond.c
diff --git a/exercises/gigasecond/test/vendor/unity.c b/exercises/practice/gigasecond/test/vendor/unity.c
similarity index 100%
rename from exercises/gigasecond/test/vendor/unity.c
rename to exercises/practice/gigasecond/test/vendor/unity.c
diff --git a/exercises/gigasecond/test/vendor/unity.h b/exercises/practice/gigasecond/test/vendor/unity.h
similarity index 100%
rename from exercises/gigasecond/test/vendor/unity.h
rename to exercises/practice/gigasecond/test/vendor/unity.h
diff --git a/exercises/gigasecond/test/vendor/unity_internals.h b/exercises/practice/gigasecond/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/gigasecond/test/vendor/unity_internals.h
rename to exercises/practice/gigasecond/test/vendor/unity_internals.h
diff --git a/exercises/grade-school/.meta/tests.toml b/exercises/practice/grade-school/.meta/tests.toml
similarity index 100%
rename from exercises/grade-school/.meta/tests.toml
rename to exercises/practice/grade-school/.meta/tests.toml
diff --git a/exercises/grade-school/README.md b/exercises/practice/grade-school/README.md
similarity index 100%
rename from exercises/grade-school/README.md
rename to exercises/practice/grade-school/README.md
diff --git a/exercises/grade-school/makefile b/exercises/practice/grade-school/makefile
similarity index 100%
rename from exercises/grade-school/makefile
rename to exercises/practice/grade-school/makefile
diff --git a/exercises/grade-school/src/example.c b/exercises/practice/grade-school/src/example.c
similarity index 100%
rename from exercises/grade-school/src/example.c
rename to exercises/practice/grade-school/src/example.c
diff --git a/exercises/grade-school/src/example.h b/exercises/practice/grade-school/src/example.h
similarity index 100%
rename from exercises/grade-school/src/example.h
rename to exercises/practice/grade-school/src/example.h
diff --git a/exercises/grade-school/src/grade_school.c b/exercises/practice/grade-school/src/grade_school.c
similarity index 100%
rename from exercises/grade-school/src/grade_school.c
rename to exercises/practice/grade-school/src/grade_school.c
diff --git a/exercises/grade-school/src/grade_school.h b/exercises/practice/grade-school/src/grade_school.h
similarity index 100%
rename from exercises/grade-school/src/grade_school.h
rename to exercises/practice/grade-school/src/grade_school.h
diff --git a/exercises/grade-school/test/test_grade_school.c b/exercises/practice/grade-school/test/test_grade_school.c
similarity index 100%
rename from exercises/grade-school/test/test_grade_school.c
rename to exercises/practice/grade-school/test/test_grade_school.c
diff --git a/exercises/grade-school/test/vendor/unity.c b/exercises/practice/grade-school/test/vendor/unity.c
similarity index 100%
rename from exercises/grade-school/test/vendor/unity.c
rename to exercises/practice/grade-school/test/vendor/unity.c
diff --git a/exercises/grade-school/test/vendor/unity.h b/exercises/practice/grade-school/test/vendor/unity.h
similarity index 100%
rename from exercises/grade-school/test/vendor/unity.h
rename to exercises/practice/grade-school/test/vendor/unity.h
diff --git a/exercises/grade-school/test/vendor/unity_internals.h b/exercises/practice/grade-school/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/grade-school/test/vendor/unity_internals.h
rename to exercises/practice/grade-school/test/vendor/unity_internals.h
diff --git a/exercises/grains/.meta/tests.toml b/exercises/practice/grains/.meta/tests.toml
similarity index 100%
rename from exercises/grains/.meta/tests.toml
rename to exercises/practice/grains/.meta/tests.toml
diff --git a/exercises/grains/README.md b/exercises/practice/grains/README.md
similarity index 100%
rename from exercises/grains/README.md
rename to exercises/practice/grains/README.md
diff --git a/exercises/grains/makefile b/exercises/practice/grains/makefile
similarity index 100%
rename from exercises/grains/makefile
rename to exercises/practice/grains/makefile
diff --git a/exercises/grains/src/example.c b/exercises/practice/grains/src/example.c
similarity index 100%
rename from exercises/grains/src/example.c
rename to exercises/practice/grains/src/example.c
diff --git a/exercises/grains/src/example.h b/exercises/practice/grains/src/example.h
similarity index 100%
rename from exercises/grains/src/example.h
rename to exercises/practice/grains/src/example.h
diff --git a/exercises/grains/src/grains.c b/exercises/practice/grains/src/grains.c
similarity index 100%
rename from exercises/grains/src/grains.c
rename to exercises/practice/grains/src/grains.c
diff --git a/exercises/grains/src/grains.h b/exercises/practice/grains/src/grains.h
similarity index 100%
rename from exercises/grains/src/grains.h
rename to exercises/practice/grains/src/grains.h
diff --git a/exercises/grains/test/test_grains.c b/exercises/practice/grains/test/test_grains.c
similarity index 100%
rename from exercises/grains/test/test_grains.c
rename to exercises/practice/grains/test/test_grains.c
diff --git a/exercises/grains/test/vendor/unity.c b/exercises/practice/grains/test/vendor/unity.c
similarity index 100%
rename from exercises/grains/test/vendor/unity.c
rename to exercises/practice/grains/test/vendor/unity.c
diff --git a/exercises/grains/test/vendor/unity.h b/exercises/practice/grains/test/vendor/unity.h
similarity index 100%
rename from exercises/grains/test/vendor/unity.h
rename to exercises/practice/grains/test/vendor/unity.h
diff --git a/exercises/grains/test/vendor/unity_internals.h b/exercises/practice/grains/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/grains/test/vendor/unity_internals.h
rename to exercises/practice/grains/test/vendor/unity_internals.h
diff --git a/exercises/hamming/.meta/tests.toml b/exercises/practice/hamming/.meta/tests.toml
similarity index 100%
rename from exercises/hamming/.meta/tests.toml
rename to exercises/practice/hamming/.meta/tests.toml
diff --git a/exercises/hamming/README.md b/exercises/practice/hamming/README.md
similarity index 100%
rename from exercises/hamming/README.md
rename to exercises/practice/hamming/README.md
diff --git a/exercises/hamming/makefile b/exercises/practice/hamming/makefile
similarity index 100%
rename from exercises/hamming/makefile
rename to exercises/practice/hamming/makefile
diff --git a/exercises/hamming/src/example.c b/exercises/practice/hamming/src/example.c
similarity index 100%
rename from exercises/hamming/src/example.c
rename to exercises/practice/hamming/src/example.c
diff --git a/exercises/hamming/src/example.h b/exercises/practice/hamming/src/example.h
similarity index 100%
rename from exercises/hamming/src/example.h
rename to exercises/practice/hamming/src/example.h
diff --git a/exercises/hamming/src/hamming.c b/exercises/practice/hamming/src/hamming.c
similarity index 100%
rename from exercises/hamming/src/hamming.c
rename to exercises/practice/hamming/src/hamming.c
diff --git a/exercises/hamming/src/hamming.h b/exercises/practice/hamming/src/hamming.h
similarity index 100%
rename from exercises/hamming/src/hamming.h
rename to exercises/practice/hamming/src/hamming.h
diff --git a/exercises/hamming/test/test_hamming.c b/exercises/practice/hamming/test/test_hamming.c
similarity index 100%
rename from exercises/hamming/test/test_hamming.c
rename to exercises/practice/hamming/test/test_hamming.c
diff --git a/exercises/hamming/test/vendor/unity.c b/exercises/practice/hamming/test/vendor/unity.c
similarity index 100%
rename from exercises/hamming/test/vendor/unity.c
rename to exercises/practice/hamming/test/vendor/unity.c
diff --git a/exercises/hamming/test/vendor/unity.h b/exercises/practice/hamming/test/vendor/unity.h
similarity index 100%
rename from exercises/hamming/test/vendor/unity.h
rename to exercises/practice/hamming/test/vendor/unity.h
diff --git a/exercises/hamming/test/vendor/unity_internals.h b/exercises/practice/hamming/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/hamming/test/vendor/unity_internals.h
rename to exercises/practice/hamming/test/vendor/unity_internals.h
diff --git a/exercises/hello-world/.meta/tests.toml b/exercises/practice/hello-world/.meta/tests.toml
similarity index 100%
rename from exercises/hello-world/.meta/tests.toml
rename to exercises/practice/hello-world/.meta/tests.toml
diff --git a/exercises/hello-world/README.md b/exercises/practice/hello-world/README.md
similarity index 100%
rename from exercises/hello-world/README.md
rename to exercises/practice/hello-world/README.md
diff --git a/exercises/hello-world/makefile b/exercises/practice/hello-world/makefile
similarity index 100%
rename from exercises/hello-world/makefile
rename to exercises/practice/hello-world/makefile
diff --git a/exercises/hello-world/src/example.c b/exercises/practice/hello-world/src/example.c
similarity index 100%
rename from exercises/hello-world/src/example.c
rename to exercises/practice/hello-world/src/example.c
diff --git a/exercises/hello-world/src/hello_world.c b/exercises/practice/hello-world/src/hello_world.c
similarity index 100%
rename from exercises/hello-world/src/hello_world.c
rename to exercises/practice/hello-world/src/hello_world.c
diff --git a/exercises/hello-world/src/hello_world.h b/exercises/practice/hello-world/src/hello_world.h
similarity index 100%
rename from exercises/hello-world/src/hello_world.h
rename to exercises/practice/hello-world/src/hello_world.h
diff --git a/exercises/hello-world/test/test_hello_world.c b/exercises/practice/hello-world/test/test_hello_world.c
similarity index 100%
rename from exercises/hello-world/test/test_hello_world.c
rename to exercises/practice/hello-world/test/test_hello_world.c
diff --git a/exercises/hello-world/test/vendor/unity.c b/exercises/practice/hello-world/test/vendor/unity.c
similarity index 100%
rename from exercises/hello-world/test/vendor/unity.c
rename to exercises/practice/hello-world/test/vendor/unity.c
diff --git a/exercises/hello-world/test/vendor/unity.h b/exercises/practice/hello-world/test/vendor/unity.h
similarity index 100%
rename from exercises/hello-world/test/vendor/unity.h
rename to exercises/practice/hello-world/test/vendor/unity.h
diff --git a/exercises/hello-world/test/vendor/unity_internals.h b/exercises/practice/hello-world/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/hello-world/test/vendor/unity_internals.h
rename to exercises/practice/hello-world/test/vendor/unity_internals.h
diff --git a/exercises/isogram/.meta/tests.toml b/exercises/practice/isogram/.meta/tests.toml
similarity index 100%
rename from exercises/isogram/.meta/tests.toml
rename to exercises/practice/isogram/.meta/tests.toml
diff --git a/exercises/isogram/README.md b/exercises/practice/isogram/README.md
similarity index 100%
rename from exercises/isogram/README.md
rename to exercises/practice/isogram/README.md
diff --git a/exercises/isogram/makefile b/exercises/practice/isogram/makefile
similarity index 100%
rename from exercises/isogram/makefile
rename to exercises/practice/isogram/makefile
diff --git a/exercises/isogram/src/example.c b/exercises/practice/isogram/src/example.c
similarity index 100%
rename from exercises/isogram/src/example.c
rename to exercises/practice/isogram/src/example.c
diff --git a/exercises/isogram/src/isogram.c b/exercises/practice/isogram/src/isogram.c
similarity index 100%
rename from exercises/isogram/src/isogram.c
rename to exercises/practice/isogram/src/isogram.c
diff --git a/exercises/isogram/src/isogram.h b/exercises/practice/isogram/src/isogram.h
similarity index 100%
rename from exercises/isogram/src/isogram.h
rename to exercises/practice/isogram/src/isogram.h
diff --git a/exercises/isogram/test/test_isogram.c b/exercises/practice/isogram/test/test_isogram.c
similarity index 100%
rename from exercises/isogram/test/test_isogram.c
rename to exercises/practice/isogram/test/test_isogram.c
diff --git a/exercises/isogram/test/vendor/unity.c b/exercises/practice/isogram/test/vendor/unity.c
similarity index 100%
rename from exercises/isogram/test/vendor/unity.c
rename to exercises/practice/isogram/test/vendor/unity.c
diff --git a/exercises/isogram/test/vendor/unity.h b/exercises/practice/isogram/test/vendor/unity.h
similarity index 100%
rename from exercises/isogram/test/vendor/unity.h
rename to exercises/practice/isogram/test/vendor/unity.h
diff --git a/exercises/isogram/test/vendor/unity_internals.h b/exercises/practice/isogram/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/isogram/test/vendor/unity_internals.h
rename to exercises/practice/isogram/test/vendor/unity_internals.h
diff --git a/exercises/largest-series-product/.meta/tests.toml b/exercises/practice/largest-series-product/.meta/tests.toml
similarity index 100%
rename from exercises/largest-series-product/.meta/tests.toml
rename to exercises/practice/largest-series-product/.meta/tests.toml
diff --git a/exercises/largest-series-product/README.md b/exercises/practice/largest-series-product/README.md
similarity index 100%
rename from exercises/largest-series-product/README.md
rename to exercises/practice/largest-series-product/README.md
diff --git a/exercises/largest-series-product/makefile b/exercises/practice/largest-series-product/makefile
similarity index 100%
rename from exercises/largest-series-product/makefile
rename to exercises/practice/largest-series-product/makefile
diff --git a/exercises/largest-series-product/src/example.c b/exercises/practice/largest-series-product/src/example.c
similarity index 100%
rename from exercises/largest-series-product/src/example.c
rename to exercises/practice/largest-series-product/src/example.c
diff --git a/exercises/largest-series-product/src/example.h b/exercises/practice/largest-series-product/src/example.h
similarity index 100%
rename from exercises/largest-series-product/src/example.h
rename to exercises/practice/largest-series-product/src/example.h
diff --git a/exercises/largest-series-product/src/largest_series_product.c b/exercises/practice/largest-series-product/src/largest_series_product.c
similarity index 100%
rename from exercises/largest-series-product/src/largest_series_product.c
rename to exercises/practice/largest-series-product/src/largest_series_product.c
diff --git a/exercises/largest-series-product/src/largest_series_product.h b/exercises/practice/largest-series-product/src/largest_series_product.h
similarity index 100%
rename from exercises/largest-series-product/src/largest_series_product.h
rename to exercises/practice/largest-series-product/src/largest_series_product.h
diff --git a/exercises/largest-series-product/test/test_largest_series_product.c b/exercises/practice/largest-series-product/test/test_largest_series_product.c
similarity index 100%
rename from exercises/largest-series-product/test/test_largest_series_product.c
rename to exercises/practice/largest-series-product/test/test_largest_series_product.c
diff --git a/exercises/largest-series-product/test/vendor/unity.c b/exercises/practice/largest-series-product/test/vendor/unity.c
similarity index 100%
rename from exercises/largest-series-product/test/vendor/unity.c
rename to exercises/practice/largest-series-product/test/vendor/unity.c
diff --git a/exercises/largest-series-product/test/vendor/unity.h b/exercises/practice/largest-series-product/test/vendor/unity.h
similarity index 100%
rename from exercises/largest-series-product/test/vendor/unity.h
rename to exercises/practice/largest-series-product/test/vendor/unity.h
diff --git a/exercises/largest-series-product/test/vendor/unity_internals.h b/exercises/practice/largest-series-product/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/largest-series-product/test/vendor/unity_internals.h
rename to exercises/practice/largest-series-product/test/vendor/unity_internals.h
diff --git a/exercises/leap/.meta/tests.toml b/exercises/practice/leap/.meta/tests.toml
similarity index 100%
rename from exercises/leap/.meta/tests.toml
rename to exercises/practice/leap/.meta/tests.toml
diff --git a/exercises/leap/README.md b/exercises/practice/leap/README.md
similarity index 100%
rename from exercises/leap/README.md
rename to exercises/practice/leap/README.md
diff --git a/exercises/leap/makefile b/exercises/practice/leap/makefile
similarity index 100%
rename from exercises/leap/makefile
rename to exercises/practice/leap/makefile
diff --git a/exercises/leap/src/example.c b/exercises/practice/leap/src/example.c
similarity index 100%
rename from exercises/leap/src/example.c
rename to exercises/practice/leap/src/example.c
diff --git a/exercises/leap/src/example.h b/exercises/practice/leap/src/example.h
similarity index 100%
rename from exercises/leap/src/example.h
rename to exercises/practice/leap/src/example.h
diff --git a/exercises/leap/src/leap.c b/exercises/practice/leap/src/leap.c
similarity index 100%
rename from exercises/leap/src/leap.c
rename to exercises/practice/leap/src/leap.c
diff --git a/exercises/leap/src/leap.h b/exercises/practice/leap/src/leap.h
similarity index 100%
rename from exercises/leap/src/leap.h
rename to exercises/practice/leap/src/leap.h
diff --git a/exercises/leap/test/test_leap.c b/exercises/practice/leap/test/test_leap.c
similarity index 100%
rename from exercises/leap/test/test_leap.c
rename to exercises/practice/leap/test/test_leap.c
diff --git a/exercises/leap/test/vendor/unity.c b/exercises/practice/leap/test/vendor/unity.c
similarity index 100%
rename from exercises/leap/test/vendor/unity.c
rename to exercises/practice/leap/test/vendor/unity.c
diff --git a/exercises/leap/test/vendor/unity.h b/exercises/practice/leap/test/vendor/unity.h
similarity index 100%
rename from exercises/leap/test/vendor/unity.h
rename to exercises/practice/leap/test/vendor/unity.h
diff --git a/exercises/leap/test/vendor/unity_internals.h b/exercises/practice/leap/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/leap/test/vendor/unity_internals.h
rename to exercises/practice/leap/test/vendor/unity_internals.h
diff --git a/exercises/linked-list/README.md b/exercises/practice/linked-list/README.md
similarity index 100%
rename from exercises/linked-list/README.md
rename to exercises/practice/linked-list/README.md
diff --git a/exercises/linked-list/makefile b/exercises/practice/linked-list/makefile
similarity index 100%
rename from exercises/linked-list/makefile
rename to exercises/practice/linked-list/makefile
diff --git a/exercises/linked-list/src/example.c b/exercises/practice/linked-list/src/example.c
similarity index 100%
rename from exercises/linked-list/src/example.c
rename to exercises/practice/linked-list/src/example.c
diff --git a/exercises/linked-list/src/example.h b/exercises/practice/linked-list/src/example.h
similarity index 100%
rename from exercises/linked-list/src/example.h
rename to exercises/practice/linked-list/src/example.h
diff --git a/exercises/linked-list/src/linked_list.c b/exercises/practice/linked-list/src/linked_list.c
similarity index 100%
rename from exercises/linked-list/src/linked_list.c
rename to exercises/practice/linked-list/src/linked_list.c
diff --git a/exercises/linked-list/src/linked_list.h b/exercises/practice/linked-list/src/linked_list.h
similarity index 100%
rename from exercises/linked-list/src/linked_list.h
rename to exercises/practice/linked-list/src/linked_list.h
diff --git a/exercises/linked-list/test/test_linked_list.c b/exercises/practice/linked-list/test/test_linked_list.c
similarity index 100%
rename from exercises/linked-list/test/test_linked_list.c
rename to exercises/practice/linked-list/test/test_linked_list.c
diff --git a/exercises/linked-list/test/vendor/unity.c b/exercises/practice/linked-list/test/vendor/unity.c
similarity index 100%
rename from exercises/linked-list/test/vendor/unity.c
rename to exercises/practice/linked-list/test/vendor/unity.c
diff --git a/exercises/linked-list/test/vendor/unity.h b/exercises/practice/linked-list/test/vendor/unity.h
similarity index 100%
rename from exercises/linked-list/test/vendor/unity.h
rename to exercises/practice/linked-list/test/vendor/unity.h
diff --git a/exercises/linked-list/test/vendor/unity_internals.h b/exercises/practice/linked-list/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/linked-list/test/vendor/unity_internals.h
rename to exercises/practice/linked-list/test/vendor/unity_internals.h
diff --git a/exercises/list-ops/.meta/tests.toml b/exercises/practice/list-ops/.meta/tests.toml
similarity index 100%
rename from exercises/list-ops/.meta/tests.toml
rename to exercises/practice/list-ops/.meta/tests.toml
diff --git a/exercises/list-ops/README.md b/exercises/practice/list-ops/README.md
similarity index 100%
rename from exercises/list-ops/README.md
rename to exercises/practice/list-ops/README.md
diff --git a/exercises/list-ops/makefile b/exercises/practice/list-ops/makefile
similarity index 100%
rename from exercises/list-ops/makefile
rename to exercises/practice/list-ops/makefile
diff --git a/exercises/list-ops/src/example.c b/exercises/practice/list-ops/src/example.c
similarity index 100%
rename from exercises/list-ops/src/example.c
rename to exercises/practice/list-ops/src/example.c
diff --git a/exercises/list-ops/src/example.h b/exercises/practice/list-ops/src/example.h
similarity index 100%
rename from exercises/list-ops/src/example.h
rename to exercises/practice/list-ops/src/example.h
diff --git a/exercises/list-ops/src/list_ops.c b/exercises/practice/list-ops/src/list_ops.c
similarity index 100%
rename from exercises/list-ops/src/list_ops.c
rename to exercises/practice/list-ops/src/list_ops.c
diff --git a/exercises/list-ops/src/list_ops.h b/exercises/practice/list-ops/src/list_ops.h
similarity index 100%
rename from exercises/list-ops/src/list_ops.h
rename to exercises/practice/list-ops/src/list_ops.h
diff --git a/exercises/list-ops/test/test_list_ops.c b/exercises/practice/list-ops/test/test_list_ops.c
similarity index 100%
rename from exercises/list-ops/test/test_list_ops.c
rename to exercises/practice/list-ops/test/test_list_ops.c
diff --git a/exercises/list-ops/test/vendor/unity.c b/exercises/practice/list-ops/test/vendor/unity.c
similarity index 100%
rename from exercises/list-ops/test/vendor/unity.c
rename to exercises/practice/list-ops/test/vendor/unity.c
diff --git a/exercises/list-ops/test/vendor/unity.h b/exercises/practice/list-ops/test/vendor/unity.h
similarity index 100%
rename from exercises/list-ops/test/vendor/unity.h
rename to exercises/practice/list-ops/test/vendor/unity.h
diff --git a/exercises/list-ops/test/vendor/unity_internals.h b/exercises/practice/list-ops/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/list-ops/test/vendor/unity_internals.h
rename to exercises/practice/list-ops/test/vendor/unity_internals.h
diff --git a/exercises/luhn/.meta/tests.toml b/exercises/practice/luhn/.meta/tests.toml
similarity index 100%
rename from exercises/luhn/.meta/tests.toml
rename to exercises/practice/luhn/.meta/tests.toml
diff --git a/exercises/luhn/README.md b/exercises/practice/luhn/README.md
similarity index 100%
rename from exercises/luhn/README.md
rename to exercises/practice/luhn/README.md
diff --git a/exercises/luhn/makefile b/exercises/practice/luhn/makefile
similarity index 100%
rename from exercises/luhn/makefile
rename to exercises/practice/luhn/makefile
diff --git a/exercises/luhn/src/example.c b/exercises/practice/luhn/src/example.c
similarity index 100%
rename from exercises/luhn/src/example.c
rename to exercises/practice/luhn/src/example.c
diff --git a/exercises/luhn/src/example.h b/exercises/practice/luhn/src/example.h
similarity index 100%
rename from exercises/luhn/src/example.h
rename to exercises/practice/luhn/src/example.h
diff --git a/exercises/luhn/src/luhn.c b/exercises/practice/luhn/src/luhn.c
similarity index 100%
rename from exercises/luhn/src/luhn.c
rename to exercises/practice/luhn/src/luhn.c
diff --git a/exercises/luhn/src/luhn.h b/exercises/practice/luhn/src/luhn.h
similarity index 100%
rename from exercises/luhn/src/luhn.h
rename to exercises/practice/luhn/src/luhn.h
diff --git a/exercises/luhn/test/test_luhn.c b/exercises/practice/luhn/test/test_luhn.c
similarity index 100%
rename from exercises/luhn/test/test_luhn.c
rename to exercises/practice/luhn/test/test_luhn.c
diff --git a/exercises/luhn/test/vendor/unity.c b/exercises/practice/luhn/test/vendor/unity.c
similarity index 100%
rename from exercises/luhn/test/vendor/unity.c
rename to exercises/practice/luhn/test/vendor/unity.c
diff --git a/exercises/luhn/test/vendor/unity.h b/exercises/practice/luhn/test/vendor/unity.h
similarity index 100%
rename from exercises/luhn/test/vendor/unity.h
rename to exercises/practice/luhn/test/vendor/unity.h
diff --git a/exercises/luhn/test/vendor/unity_internals.h b/exercises/practice/luhn/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/luhn/test/vendor/unity_internals.h
rename to exercises/practice/luhn/test/vendor/unity_internals.h
diff --git a/exercises/matching-brackets/.meta/tests.toml b/exercises/practice/matching-brackets/.meta/tests.toml
similarity index 100%
rename from exercises/matching-brackets/.meta/tests.toml
rename to exercises/practice/matching-brackets/.meta/tests.toml
diff --git a/exercises/matching-brackets/README.md b/exercises/practice/matching-brackets/README.md
similarity index 100%
rename from exercises/matching-brackets/README.md
rename to exercises/practice/matching-brackets/README.md
diff --git a/exercises/matching-brackets/makefile b/exercises/practice/matching-brackets/makefile
similarity index 100%
rename from exercises/matching-brackets/makefile
rename to exercises/practice/matching-brackets/makefile
diff --git a/exercises/matching-brackets/src/example.c b/exercises/practice/matching-brackets/src/example.c
similarity index 100%
rename from exercises/matching-brackets/src/example.c
rename to exercises/practice/matching-brackets/src/example.c
diff --git a/exercises/matching-brackets/src/example.h b/exercises/practice/matching-brackets/src/example.h
similarity index 100%
rename from exercises/matching-brackets/src/example.h
rename to exercises/practice/matching-brackets/src/example.h
diff --git a/exercises/matching-brackets/src/matching_brackets.c b/exercises/practice/matching-brackets/src/matching_brackets.c
similarity index 100%
rename from exercises/matching-brackets/src/matching_brackets.c
rename to exercises/practice/matching-brackets/src/matching_brackets.c
diff --git a/exercises/matching-brackets/src/matching_brackets.h b/exercises/practice/matching-brackets/src/matching_brackets.h
similarity index 100%
rename from exercises/matching-brackets/src/matching_brackets.h
rename to exercises/practice/matching-brackets/src/matching_brackets.h
diff --git a/exercises/matching-brackets/test/test_matching_brackets.c b/exercises/practice/matching-brackets/test/test_matching_brackets.c
similarity index 100%
rename from exercises/matching-brackets/test/test_matching_brackets.c
rename to exercises/practice/matching-brackets/test/test_matching_brackets.c
diff --git a/exercises/matching-brackets/test/vendor/unity.c b/exercises/practice/matching-brackets/test/vendor/unity.c
similarity index 100%
rename from exercises/matching-brackets/test/vendor/unity.c
rename to exercises/practice/matching-brackets/test/vendor/unity.c
diff --git a/exercises/matching-brackets/test/vendor/unity.h b/exercises/practice/matching-brackets/test/vendor/unity.h
similarity index 100%
rename from exercises/matching-brackets/test/vendor/unity.h
rename to exercises/practice/matching-brackets/test/vendor/unity.h
diff --git a/exercises/matching-brackets/test/vendor/unity_internals.h b/exercises/practice/matching-brackets/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/matching-brackets/test/vendor/unity_internals.h
rename to exercises/practice/matching-brackets/test/vendor/unity_internals.h
diff --git a/exercises/meetup/.meta/tests.toml b/exercises/practice/meetup/.meta/tests.toml
similarity index 100%
rename from exercises/meetup/.meta/tests.toml
rename to exercises/practice/meetup/.meta/tests.toml
diff --git a/exercises/meetup/README.md b/exercises/practice/meetup/README.md
similarity index 100%
rename from exercises/meetup/README.md
rename to exercises/practice/meetup/README.md
diff --git a/exercises/meetup/makefile b/exercises/practice/meetup/makefile
similarity index 100%
rename from exercises/meetup/makefile
rename to exercises/practice/meetup/makefile
diff --git a/exercises/meetup/src/example.c b/exercises/practice/meetup/src/example.c
similarity index 100%
rename from exercises/meetup/src/example.c
rename to exercises/practice/meetup/src/example.c
diff --git a/exercises/meetup/src/example.h b/exercises/practice/meetup/src/example.h
similarity index 100%
rename from exercises/meetup/src/example.h
rename to exercises/practice/meetup/src/example.h
diff --git a/exercises/meetup/src/meetup.c b/exercises/practice/meetup/src/meetup.c
similarity index 100%
rename from exercises/meetup/src/meetup.c
rename to exercises/practice/meetup/src/meetup.c
diff --git a/exercises/meetup/src/meetup.h b/exercises/practice/meetup/src/meetup.h
similarity index 100%
rename from exercises/meetup/src/meetup.h
rename to exercises/practice/meetup/src/meetup.h
diff --git a/exercises/meetup/test/test_meetup.c b/exercises/practice/meetup/test/test_meetup.c
similarity index 100%
rename from exercises/meetup/test/test_meetup.c
rename to exercises/practice/meetup/test/test_meetup.c
diff --git a/exercises/meetup/test/vendor/unity.c b/exercises/practice/meetup/test/vendor/unity.c
similarity index 100%
rename from exercises/meetup/test/vendor/unity.c
rename to exercises/practice/meetup/test/vendor/unity.c
diff --git a/exercises/meetup/test/vendor/unity.h b/exercises/practice/meetup/test/vendor/unity.h
similarity index 100%
rename from exercises/meetup/test/vendor/unity.h
rename to exercises/practice/meetup/test/vendor/unity.h
diff --git a/exercises/meetup/test/vendor/unity_internals.h b/exercises/practice/meetup/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/meetup/test/vendor/unity_internals.h
rename to exercises/practice/meetup/test/vendor/unity_internals.h
diff --git a/exercises/minesweeper/.meta/tests.toml b/exercises/practice/minesweeper/.meta/tests.toml
similarity index 100%
rename from exercises/minesweeper/.meta/tests.toml
rename to exercises/practice/minesweeper/.meta/tests.toml
diff --git a/exercises/minesweeper/README.md b/exercises/practice/minesweeper/README.md
similarity index 100%
rename from exercises/minesweeper/README.md
rename to exercises/practice/minesweeper/README.md
diff --git a/exercises/minesweeper/makefile b/exercises/practice/minesweeper/makefile
similarity index 100%
rename from exercises/minesweeper/makefile
rename to exercises/practice/minesweeper/makefile
diff --git a/exercises/minesweeper/src/example.c b/exercises/practice/minesweeper/src/example.c
similarity index 100%
rename from exercises/minesweeper/src/example.c
rename to exercises/practice/minesweeper/src/example.c
diff --git a/exercises/minesweeper/src/example.h b/exercises/practice/minesweeper/src/example.h
similarity index 100%
rename from exercises/minesweeper/src/example.h
rename to exercises/practice/minesweeper/src/example.h
diff --git a/exercises/minesweeper/src/minesweeper.c b/exercises/practice/minesweeper/src/minesweeper.c
similarity index 100%
rename from exercises/minesweeper/src/minesweeper.c
rename to exercises/practice/minesweeper/src/minesweeper.c
diff --git a/exercises/minesweeper/src/minesweeper.h b/exercises/practice/minesweeper/src/minesweeper.h
similarity index 100%
rename from exercises/minesweeper/src/minesweeper.h
rename to exercises/practice/minesweeper/src/minesweeper.h
diff --git a/exercises/minesweeper/test/test_minesweeper.c b/exercises/practice/minesweeper/test/test_minesweeper.c
similarity index 100%
rename from exercises/minesweeper/test/test_minesweeper.c
rename to exercises/practice/minesweeper/test/test_minesweeper.c
diff --git a/exercises/minesweeper/test/vendor/unity.c b/exercises/practice/minesweeper/test/vendor/unity.c
similarity index 100%
rename from exercises/minesweeper/test/vendor/unity.c
rename to exercises/practice/minesweeper/test/vendor/unity.c
diff --git a/exercises/minesweeper/test/vendor/unity.h b/exercises/practice/minesweeper/test/vendor/unity.h
similarity index 100%
rename from exercises/minesweeper/test/vendor/unity.h
rename to exercises/practice/minesweeper/test/vendor/unity.h
diff --git a/exercises/minesweeper/test/vendor/unity_internals.h b/exercises/practice/minesweeper/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/minesweeper/test/vendor/unity_internals.h
rename to exercises/practice/minesweeper/test/vendor/unity_internals.h
diff --git a/exercises/nth-prime/.meta/tests.toml b/exercises/practice/nth-prime/.meta/tests.toml
similarity index 100%
rename from exercises/nth-prime/.meta/tests.toml
rename to exercises/practice/nth-prime/.meta/tests.toml
diff --git a/exercises/nth-prime/README.md b/exercises/practice/nth-prime/README.md
similarity index 100%
rename from exercises/nth-prime/README.md
rename to exercises/practice/nth-prime/README.md
diff --git a/exercises/nth-prime/makefile b/exercises/practice/nth-prime/makefile
similarity index 100%
rename from exercises/nth-prime/makefile
rename to exercises/practice/nth-prime/makefile
diff --git a/exercises/nth-prime/src/example.c b/exercises/practice/nth-prime/src/example.c
similarity index 100%
rename from exercises/nth-prime/src/example.c
rename to exercises/practice/nth-prime/src/example.c
diff --git a/exercises/nth-prime/src/example.h b/exercises/practice/nth-prime/src/example.h
similarity index 100%
rename from exercises/nth-prime/src/example.h
rename to exercises/practice/nth-prime/src/example.h
diff --git a/exercises/nth-prime/src/nth_prime.c b/exercises/practice/nth-prime/src/nth_prime.c
similarity index 100%
rename from exercises/nth-prime/src/nth_prime.c
rename to exercises/practice/nth-prime/src/nth_prime.c
diff --git a/exercises/nth-prime/src/nth_prime.h b/exercises/practice/nth-prime/src/nth_prime.h
similarity index 100%
rename from exercises/nth-prime/src/nth_prime.h
rename to exercises/practice/nth-prime/src/nth_prime.h
diff --git a/exercises/nth-prime/test/test_nth_prime.c b/exercises/practice/nth-prime/test/test_nth_prime.c
similarity index 100%
rename from exercises/nth-prime/test/test_nth_prime.c
rename to exercises/practice/nth-prime/test/test_nth_prime.c
diff --git a/exercises/nth-prime/test/vendor/unity.c b/exercises/practice/nth-prime/test/vendor/unity.c
similarity index 100%
rename from exercises/nth-prime/test/vendor/unity.c
rename to exercises/practice/nth-prime/test/vendor/unity.c
diff --git a/exercises/nth-prime/test/vendor/unity.h b/exercises/practice/nth-prime/test/vendor/unity.h
similarity index 100%
rename from exercises/nth-prime/test/vendor/unity.h
rename to exercises/practice/nth-prime/test/vendor/unity.h
diff --git a/exercises/nth-prime/test/vendor/unity_internals.h b/exercises/practice/nth-prime/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/nth-prime/test/vendor/unity_internals.h
rename to exercises/practice/nth-prime/test/vendor/unity_internals.h
diff --git a/exercises/nucleotide-count/.meta/tests.toml b/exercises/practice/nucleotide-count/.meta/tests.toml
similarity index 100%
rename from exercises/nucleotide-count/.meta/tests.toml
rename to exercises/practice/nucleotide-count/.meta/tests.toml
diff --git a/exercises/nucleotide-count/README.md b/exercises/practice/nucleotide-count/README.md
similarity index 100%
rename from exercises/nucleotide-count/README.md
rename to exercises/practice/nucleotide-count/README.md
diff --git a/exercises/nucleotide-count/makefile b/exercises/practice/nucleotide-count/makefile
similarity index 100%
rename from exercises/nucleotide-count/makefile
rename to exercises/practice/nucleotide-count/makefile
diff --git a/exercises/nucleotide-count/src/example.c b/exercises/practice/nucleotide-count/src/example.c
similarity index 100%
rename from exercises/nucleotide-count/src/example.c
rename to exercises/practice/nucleotide-count/src/example.c
diff --git a/exercises/nucleotide-count/src/example.h b/exercises/practice/nucleotide-count/src/example.h
similarity index 100%
rename from exercises/nucleotide-count/src/example.h
rename to exercises/practice/nucleotide-count/src/example.h
diff --git a/exercises/nucleotide-count/src/nucleotide_count.c b/exercises/practice/nucleotide-count/src/nucleotide_count.c
similarity index 100%
rename from exercises/nucleotide-count/src/nucleotide_count.c
rename to exercises/practice/nucleotide-count/src/nucleotide_count.c
diff --git a/exercises/nucleotide-count/src/nucleotide_count.h b/exercises/practice/nucleotide-count/src/nucleotide_count.h
similarity index 100%
rename from exercises/nucleotide-count/src/nucleotide_count.h
rename to exercises/practice/nucleotide-count/src/nucleotide_count.h
diff --git a/exercises/nucleotide-count/test/test_nucleotide_count.c b/exercises/practice/nucleotide-count/test/test_nucleotide_count.c
similarity index 100%
rename from exercises/nucleotide-count/test/test_nucleotide_count.c
rename to exercises/practice/nucleotide-count/test/test_nucleotide_count.c
diff --git a/exercises/nucleotide-count/test/vendor/unity.c b/exercises/practice/nucleotide-count/test/vendor/unity.c
similarity index 100%
rename from exercises/nucleotide-count/test/vendor/unity.c
rename to exercises/practice/nucleotide-count/test/vendor/unity.c
diff --git a/exercises/nucleotide-count/test/vendor/unity.h b/exercises/practice/nucleotide-count/test/vendor/unity.h
similarity index 100%
rename from exercises/nucleotide-count/test/vendor/unity.h
rename to exercises/practice/nucleotide-count/test/vendor/unity.h
diff --git a/exercises/nucleotide-count/test/vendor/unity_internals.h b/exercises/practice/nucleotide-count/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/nucleotide-count/test/vendor/unity_internals.h
rename to exercises/practice/nucleotide-count/test/vendor/unity_internals.h
diff --git a/exercises/palindrome-products/.meta/tests.toml b/exercises/practice/palindrome-products/.meta/tests.toml
similarity index 100%
rename from exercises/palindrome-products/.meta/tests.toml
rename to exercises/practice/palindrome-products/.meta/tests.toml
diff --git a/exercises/palindrome-products/README.md b/exercises/practice/palindrome-products/README.md
similarity index 100%
rename from exercises/palindrome-products/README.md
rename to exercises/practice/palindrome-products/README.md
diff --git a/exercises/palindrome-products/makefile b/exercises/practice/palindrome-products/makefile
similarity index 100%
rename from exercises/palindrome-products/makefile
rename to exercises/practice/palindrome-products/makefile
diff --git a/exercises/palindrome-products/src/example.c b/exercises/practice/palindrome-products/src/example.c
similarity index 100%
rename from exercises/palindrome-products/src/example.c
rename to exercises/practice/palindrome-products/src/example.c
diff --git a/exercises/palindrome-products/src/example.h b/exercises/practice/palindrome-products/src/example.h
similarity index 100%
rename from exercises/palindrome-products/src/example.h
rename to exercises/practice/palindrome-products/src/example.h
diff --git a/exercises/palindrome-products/src/palindrome_products.c b/exercises/practice/palindrome-products/src/palindrome_products.c
similarity index 100%
rename from exercises/palindrome-products/src/palindrome_products.c
rename to exercises/practice/palindrome-products/src/palindrome_products.c
diff --git a/exercises/palindrome-products/src/palindrome_products.h b/exercises/practice/palindrome-products/src/palindrome_products.h
similarity index 100%
rename from exercises/palindrome-products/src/palindrome_products.h
rename to exercises/practice/palindrome-products/src/palindrome_products.h
diff --git a/exercises/palindrome-products/test/test_palindrome_products.c b/exercises/practice/palindrome-products/test/test_palindrome_products.c
similarity index 100%
rename from exercises/palindrome-products/test/test_palindrome_products.c
rename to exercises/practice/palindrome-products/test/test_palindrome_products.c
diff --git a/exercises/palindrome-products/test/vendor/unity.c b/exercises/practice/palindrome-products/test/vendor/unity.c
similarity index 100%
rename from exercises/palindrome-products/test/vendor/unity.c
rename to exercises/practice/palindrome-products/test/vendor/unity.c
diff --git a/exercises/palindrome-products/test/vendor/unity.h b/exercises/practice/palindrome-products/test/vendor/unity.h
similarity index 100%
rename from exercises/palindrome-products/test/vendor/unity.h
rename to exercises/practice/palindrome-products/test/vendor/unity.h
diff --git a/exercises/palindrome-products/test/vendor/unity_internals.h b/exercises/practice/palindrome-products/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/palindrome-products/test/vendor/unity_internals.h
rename to exercises/practice/palindrome-products/test/vendor/unity_internals.h
diff --git a/exercises/pangram/.meta/tests.toml b/exercises/practice/pangram/.meta/tests.toml
similarity index 100%
rename from exercises/pangram/.meta/tests.toml
rename to exercises/practice/pangram/.meta/tests.toml
diff --git a/exercises/pangram/README.md b/exercises/practice/pangram/README.md
similarity index 100%
rename from exercises/pangram/README.md
rename to exercises/practice/pangram/README.md
diff --git a/exercises/pangram/makefile b/exercises/practice/pangram/makefile
similarity index 100%
rename from exercises/pangram/makefile
rename to exercises/practice/pangram/makefile
diff --git a/exercises/pangram/src/example.c b/exercises/practice/pangram/src/example.c
similarity index 100%
rename from exercises/pangram/src/example.c
rename to exercises/practice/pangram/src/example.c
diff --git a/exercises/pangram/src/pangram.c b/exercises/practice/pangram/src/pangram.c
similarity index 100%
rename from exercises/pangram/src/pangram.c
rename to exercises/practice/pangram/src/pangram.c
diff --git a/exercises/pangram/src/pangram.h b/exercises/practice/pangram/src/pangram.h
similarity index 100%
rename from exercises/pangram/src/pangram.h
rename to exercises/practice/pangram/src/pangram.h
diff --git a/exercises/pangram/test/test_pangram.c b/exercises/practice/pangram/test/test_pangram.c
similarity index 100%
rename from exercises/pangram/test/test_pangram.c
rename to exercises/practice/pangram/test/test_pangram.c
diff --git a/exercises/pangram/test/vendor/unity.c b/exercises/practice/pangram/test/vendor/unity.c
similarity index 100%
rename from exercises/pangram/test/vendor/unity.c
rename to exercises/practice/pangram/test/vendor/unity.c
diff --git a/exercises/pangram/test/vendor/unity.h b/exercises/practice/pangram/test/vendor/unity.h
similarity index 100%
rename from exercises/pangram/test/vendor/unity.h
rename to exercises/practice/pangram/test/vendor/unity.h
diff --git a/exercises/pangram/test/vendor/unity_internals.h b/exercises/practice/pangram/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/pangram/test/vendor/unity_internals.h
rename to exercises/practice/pangram/test/vendor/unity_internals.h
diff --git a/exercises/pascals-triangle/.meta/tests.toml b/exercises/practice/pascals-triangle/.meta/tests.toml
similarity index 100%
rename from exercises/pascals-triangle/.meta/tests.toml
rename to exercises/practice/pascals-triangle/.meta/tests.toml
diff --git a/exercises/pascals-triangle/README.md b/exercises/practice/pascals-triangle/README.md
similarity index 100%
rename from exercises/pascals-triangle/README.md
rename to exercises/practice/pascals-triangle/README.md
diff --git a/exercises/pascals-triangle/makefile b/exercises/practice/pascals-triangle/makefile
similarity index 100%
rename from exercises/pascals-triangle/makefile
rename to exercises/practice/pascals-triangle/makefile
diff --git a/exercises/pascals-triangle/src/example.c b/exercises/practice/pascals-triangle/src/example.c
similarity index 100%
rename from exercises/pascals-triangle/src/example.c
rename to exercises/practice/pascals-triangle/src/example.c
diff --git a/exercises/pascals-triangle/src/example.h b/exercises/practice/pascals-triangle/src/example.h
similarity index 100%
rename from exercises/pascals-triangle/src/example.h
rename to exercises/practice/pascals-triangle/src/example.h
diff --git a/exercises/pascals-triangle/src/pascals_triangle.c b/exercises/practice/pascals-triangle/src/pascals_triangle.c
similarity index 100%
rename from exercises/pascals-triangle/src/pascals_triangle.c
rename to exercises/practice/pascals-triangle/src/pascals_triangle.c
diff --git a/exercises/pascals-triangle/src/pascals_triangle.h b/exercises/practice/pascals-triangle/src/pascals_triangle.h
similarity index 100%
rename from exercises/pascals-triangle/src/pascals_triangle.h
rename to exercises/practice/pascals-triangle/src/pascals_triangle.h
diff --git a/exercises/pascals-triangle/test/test_pascals_triangle.c b/exercises/practice/pascals-triangle/test/test_pascals_triangle.c
similarity index 100%
rename from exercises/pascals-triangle/test/test_pascals_triangle.c
rename to exercises/practice/pascals-triangle/test/test_pascals_triangle.c
diff --git a/exercises/pascals-triangle/test/vendor/unity.c b/exercises/practice/pascals-triangle/test/vendor/unity.c
similarity index 100%
rename from exercises/pascals-triangle/test/vendor/unity.c
rename to exercises/practice/pascals-triangle/test/vendor/unity.c
diff --git a/exercises/pascals-triangle/test/vendor/unity.h b/exercises/practice/pascals-triangle/test/vendor/unity.h
similarity index 100%
rename from exercises/pascals-triangle/test/vendor/unity.h
rename to exercises/practice/pascals-triangle/test/vendor/unity.h
diff --git a/exercises/pascals-triangle/test/vendor/unity_internals.h b/exercises/practice/pascals-triangle/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/pascals-triangle/test/vendor/unity_internals.h
rename to exercises/practice/pascals-triangle/test/vendor/unity_internals.h
diff --git a/exercises/perfect-numbers/.meta/tests.toml b/exercises/practice/perfect-numbers/.meta/tests.toml
similarity index 100%
rename from exercises/perfect-numbers/.meta/tests.toml
rename to exercises/practice/perfect-numbers/.meta/tests.toml
diff --git a/exercises/perfect-numbers/README.md b/exercises/practice/perfect-numbers/README.md
similarity index 100%
rename from exercises/perfect-numbers/README.md
rename to exercises/practice/perfect-numbers/README.md
diff --git a/exercises/perfect-numbers/makefile b/exercises/practice/perfect-numbers/makefile
similarity index 100%
rename from exercises/perfect-numbers/makefile
rename to exercises/practice/perfect-numbers/makefile
diff --git a/exercises/perfect-numbers/src/example.c b/exercises/practice/perfect-numbers/src/example.c
similarity index 100%
rename from exercises/perfect-numbers/src/example.c
rename to exercises/practice/perfect-numbers/src/example.c
diff --git a/exercises/perfect-numbers/src/example.h b/exercises/practice/perfect-numbers/src/example.h
similarity index 100%
rename from exercises/perfect-numbers/src/example.h
rename to exercises/practice/perfect-numbers/src/example.h
diff --git a/exercises/perfect-numbers/src/perfect_numbers.c b/exercises/practice/perfect-numbers/src/perfect_numbers.c
similarity index 100%
rename from exercises/perfect-numbers/src/perfect_numbers.c
rename to exercises/practice/perfect-numbers/src/perfect_numbers.c
diff --git a/exercises/perfect-numbers/src/perfect_numbers.h b/exercises/practice/perfect-numbers/src/perfect_numbers.h
similarity index 100%
rename from exercises/perfect-numbers/src/perfect_numbers.h
rename to exercises/practice/perfect-numbers/src/perfect_numbers.h
diff --git a/exercises/perfect-numbers/test/test_perfect_numbers.c b/exercises/practice/perfect-numbers/test/test_perfect_numbers.c
similarity index 100%
rename from exercises/perfect-numbers/test/test_perfect_numbers.c
rename to exercises/practice/perfect-numbers/test/test_perfect_numbers.c
diff --git a/exercises/perfect-numbers/test/vendor/unity.c b/exercises/practice/perfect-numbers/test/vendor/unity.c
similarity index 100%
rename from exercises/perfect-numbers/test/vendor/unity.c
rename to exercises/practice/perfect-numbers/test/vendor/unity.c
diff --git a/exercises/perfect-numbers/test/vendor/unity.h b/exercises/practice/perfect-numbers/test/vendor/unity.h
similarity index 100%
rename from exercises/perfect-numbers/test/vendor/unity.h
rename to exercises/practice/perfect-numbers/test/vendor/unity.h
diff --git a/exercises/perfect-numbers/test/vendor/unity_internals.h b/exercises/practice/perfect-numbers/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/perfect-numbers/test/vendor/unity_internals.h
rename to exercises/practice/perfect-numbers/test/vendor/unity_internals.h
diff --git a/exercises/phone-number/.meta/tests.toml b/exercises/practice/phone-number/.meta/tests.toml
similarity index 100%
rename from exercises/phone-number/.meta/tests.toml
rename to exercises/practice/phone-number/.meta/tests.toml
diff --git a/exercises/phone-number/README.md b/exercises/practice/phone-number/README.md
similarity index 100%
rename from exercises/phone-number/README.md
rename to exercises/practice/phone-number/README.md
diff --git a/exercises/phone-number/makefile b/exercises/practice/phone-number/makefile
similarity index 100%
rename from exercises/phone-number/makefile
rename to exercises/practice/phone-number/makefile
diff --git a/exercises/phone-number/src/example.c b/exercises/practice/phone-number/src/example.c
similarity index 100%
rename from exercises/phone-number/src/example.c
rename to exercises/practice/phone-number/src/example.c
diff --git a/exercises/phone-number/src/example.h b/exercises/practice/phone-number/src/example.h
similarity index 100%
rename from exercises/phone-number/src/example.h
rename to exercises/practice/phone-number/src/example.h
diff --git a/exercises/phone-number/src/phone_number.c b/exercises/practice/phone-number/src/phone_number.c
similarity index 100%
rename from exercises/phone-number/src/phone_number.c
rename to exercises/practice/phone-number/src/phone_number.c
diff --git a/exercises/phone-number/src/phone_number.h b/exercises/practice/phone-number/src/phone_number.h
similarity index 100%
rename from exercises/phone-number/src/phone_number.h
rename to exercises/practice/phone-number/src/phone_number.h
diff --git a/exercises/phone-number/test/test_phone_number.c b/exercises/practice/phone-number/test/test_phone_number.c
similarity index 100%
rename from exercises/phone-number/test/test_phone_number.c
rename to exercises/practice/phone-number/test/test_phone_number.c
diff --git a/exercises/phone-number/test/vendor/unity.c b/exercises/practice/phone-number/test/vendor/unity.c
similarity index 100%
rename from exercises/phone-number/test/vendor/unity.c
rename to exercises/practice/phone-number/test/vendor/unity.c
diff --git a/exercises/phone-number/test/vendor/unity.h b/exercises/practice/phone-number/test/vendor/unity.h
similarity index 100%
rename from exercises/phone-number/test/vendor/unity.h
rename to exercises/practice/phone-number/test/vendor/unity.h
diff --git a/exercises/phone-number/test/vendor/unity_internals.h b/exercises/practice/phone-number/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/phone-number/test/vendor/unity_internals.h
rename to exercises/practice/phone-number/test/vendor/unity_internals.h
diff --git a/exercises/pig-latin/.meta/tests.toml b/exercises/practice/pig-latin/.meta/tests.toml
similarity index 100%
rename from exercises/pig-latin/.meta/tests.toml
rename to exercises/practice/pig-latin/.meta/tests.toml
diff --git a/exercises/pig-latin/README.md b/exercises/practice/pig-latin/README.md
similarity index 100%
rename from exercises/pig-latin/README.md
rename to exercises/practice/pig-latin/README.md
diff --git a/exercises/pig-latin/makefile b/exercises/practice/pig-latin/makefile
similarity index 100%
rename from exercises/pig-latin/makefile
rename to exercises/practice/pig-latin/makefile
diff --git a/exercises/pig-latin/src/example.c b/exercises/practice/pig-latin/src/example.c
similarity index 100%
rename from exercises/pig-latin/src/example.c
rename to exercises/practice/pig-latin/src/example.c
diff --git a/exercises/pig-latin/src/example.h b/exercises/practice/pig-latin/src/example.h
similarity index 100%
rename from exercises/pig-latin/src/example.h
rename to exercises/practice/pig-latin/src/example.h
diff --git a/exercises/pig-latin/src/pig_latin.c b/exercises/practice/pig-latin/src/pig_latin.c
similarity index 100%
rename from exercises/pig-latin/src/pig_latin.c
rename to exercises/practice/pig-latin/src/pig_latin.c
diff --git a/exercises/pig-latin/src/pig_latin.h b/exercises/practice/pig-latin/src/pig_latin.h
similarity index 100%
rename from exercises/pig-latin/src/pig_latin.h
rename to exercises/practice/pig-latin/src/pig_latin.h
diff --git a/exercises/pig-latin/test/test_pig_latin.c b/exercises/practice/pig-latin/test/test_pig_latin.c
similarity index 100%
rename from exercises/pig-latin/test/test_pig_latin.c
rename to exercises/practice/pig-latin/test/test_pig_latin.c
diff --git a/exercises/pig-latin/test/vendor/unity.c b/exercises/practice/pig-latin/test/vendor/unity.c
similarity index 100%
rename from exercises/pig-latin/test/vendor/unity.c
rename to exercises/practice/pig-latin/test/vendor/unity.c
diff --git a/exercises/pig-latin/test/vendor/unity.h b/exercises/practice/pig-latin/test/vendor/unity.h
similarity index 100%
rename from exercises/pig-latin/test/vendor/unity.h
rename to exercises/practice/pig-latin/test/vendor/unity.h
diff --git a/exercises/pig-latin/test/vendor/unity_internals.h b/exercises/practice/pig-latin/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/pig-latin/test/vendor/unity_internals.h
rename to exercises/practice/pig-latin/test/vendor/unity_internals.h
diff --git a/exercises/prime-factors/.meta/tests.toml b/exercises/practice/prime-factors/.meta/tests.toml
similarity index 100%
rename from exercises/prime-factors/.meta/tests.toml
rename to exercises/practice/prime-factors/.meta/tests.toml
diff --git a/exercises/prime-factors/README.md b/exercises/practice/prime-factors/README.md
similarity index 100%
rename from exercises/prime-factors/README.md
rename to exercises/practice/prime-factors/README.md
diff --git a/exercises/prime-factors/makefile b/exercises/practice/prime-factors/makefile
similarity index 100%
rename from exercises/prime-factors/makefile
rename to exercises/practice/prime-factors/makefile
diff --git a/exercises/prime-factors/src/example.c b/exercises/practice/prime-factors/src/example.c
similarity index 100%
rename from exercises/prime-factors/src/example.c
rename to exercises/practice/prime-factors/src/example.c
diff --git a/exercises/prime-factors/src/example.h b/exercises/practice/prime-factors/src/example.h
similarity index 100%
rename from exercises/prime-factors/src/example.h
rename to exercises/practice/prime-factors/src/example.h
diff --git a/exercises/prime-factors/src/prime_factors.c b/exercises/practice/prime-factors/src/prime_factors.c
similarity index 100%
rename from exercises/prime-factors/src/prime_factors.c
rename to exercises/practice/prime-factors/src/prime_factors.c
diff --git a/exercises/prime-factors/src/prime_factors.h b/exercises/practice/prime-factors/src/prime_factors.h
similarity index 100%
rename from exercises/prime-factors/src/prime_factors.h
rename to exercises/practice/prime-factors/src/prime_factors.h
diff --git a/exercises/prime-factors/test/test_prime_factors.c b/exercises/practice/prime-factors/test/test_prime_factors.c
similarity index 100%
rename from exercises/prime-factors/test/test_prime_factors.c
rename to exercises/practice/prime-factors/test/test_prime_factors.c
diff --git a/exercises/prime-factors/test/vendor/unity.c b/exercises/practice/prime-factors/test/vendor/unity.c
similarity index 100%
rename from exercises/prime-factors/test/vendor/unity.c
rename to exercises/practice/prime-factors/test/vendor/unity.c
diff --git a/exercises/prime-factors/test/vendor/unity.h b/exercises/practice/prime-factors/test/vendor/unity.h
similarity index 100%
rename from exercises/prime-factors/test/vendor/unity.h
rename to exercises/practice/prime-factors/test/vendor/unity.h
diff --git a/exercises/prime-factors/test/vendor/unity_internals.h b/exercises/practice/prime-factors/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/prime-factors/test/vendor/unity_internals.h
rename to exercises/practice/prime-factors/test/vendor/unity_internals.h
diff --git a/exercises/pythagorean-triplet/.meta/tests.toml b/exercises/practice/pythagorean-triplet/.meta/tests.toml
similarity index 100%
rename from exercises/pythagorean-triplet/.meta/tests.toml
rename to exercises/practice/pythagorean-triplet/.meta/tests.toml
diff --git a/exercises/pythagorean-triplet/README.md b/exercises/practice/pythagorean-triplet/README.md
similarity index 100%
rename from exercises/pythagorean-triplet/README.md
rename to exercises/practice/pythagorean-triplet/README.md
diff --git a/exercises/pythagorean-triplet/makefile b/exercises/practice/pythagorean-triplet/makefile
similarity index 100%
rename from exercises/pythagorean-triplet/makefile
rename to exercises/practice/pythagorean-triplet/makefile
diff --git a/exercises/pythagorean-triplet/src/example.c b/exercises/practice/pythagorean-triplet/src/example.c
similarity index 100%
rename from exercises/pythagorean-triplet/src/example.c
rename to exercises/practice/pythagorean-triplet/src/example.c
diff --git a/exercises/pythagorean-triplet/src/example.h b/exercises/practice/pythagorean-triplet/src/example.h
similarity index 100%
rename from exercises/pythagorean-triplet/src/example.h
rename to exercises/practice/pythagorean-triplet/src/example.h
diff --git a/exercises/pythagorean-triplet/src/pythagorean_triplet.c b/exercises/practice/pythagorean-triplet/src/pythagorean_triplet.c
similarity index 100%
rename from exercises/pythagorean-triplet/src/pythagorean_triplet.c
rename to exercises/practice/pythagorean-triplet/src/pythagorean_triplet.c
diff --git a/exercises/pythagorean-triplet/src/pythagorean_triplet.h b/exercises/practice/pythagorean-triplet/src/pythagorean_triplet.h
similarity index 100%
rename from exercises/pythagorean-triplet/src/pythagorean_triplet.h
rename to exercises/practice/pythagorean-triplet/src/pythagorean_triplet.h
diff --git a/exercises/pythagorean-triplet/test/test_pythagorean_triplet.c b/exercises/practice/pythagorean-triplet/test/test_pythagorean_triplet.c
similarity index 100%
rename from exercises/pythagorean-triplet/test/test_pythagorean_triplet.c
rename to exercises/practice/pythagorean-triplet/test/test_pythagorean_triplet.c
diff --git a/exercises/pythagorean-triplet/test/vendor/unity.c b/exercises/practice/pythagorean-triplet/test/vendor/unity.c
similarity index 100%
rename from exercises/pythagorean-triplet/test/vendor/unity.c
rename to exercises/practice/pythagorean-triplet/test/vendor/unity.c
diff --git a/exercises/pythagorean-triplet/test/vendor/unity.h b/exercises/practice/pythagorean-triplet/test/vendor/unity.h
similarity index 100%
rename from exercises/pythagorean-triplet/test/vendor/unity.h
rename to exercises/practice/pythagorean-triplet/test/vendor/unity.h
diff --git a/exercises/pythagorean-triplet/test/vendor/unity_internals.h b/exercises/practice/pythagorean-triplet/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/pythagorean-triplet/test/vendor/unity_internals.h
rename to exercises/practice/pythagorean-triplet/test/vendor/unity_internals.h
diff --git a/exercises/queen-attack/.meta/tests.toml b/exercises/practice/queen-attack/.meta/tests.toml
similarity index 100%
rename from exercises/queen-attack/.meta/tests.toml
rename to exercises/practice/queen-attack/.meta/tests.toml
diff --git a/exercises/queen-attack/README.md b/exercises/practice/queen-attack/README.md
similarity index 100%
rename from exercises/queen-attack/README.md
rename to exercises/practice/queen-attack/README.md
diff --git a/exercises/queen-attack/makefile b/exercises/practice/queen-attack/makefile
similarity index 100%
rename from exercises/queen-attack/makefile
rename to exercises/practice/queen-attack/makefile
diff --git a/exercises/queen-attack/src/example.c b/exercises/practice/queen-attack/src/example.c
similarity index 100%
rename from exercises/queen-attack/src/example.c
rename to exercises/practice/queen-attack/src/example.c
diff --git a/exercises/queen-attack/src/queen_attack.c b/exercises/practice/queen-attack/src/queen_attack.c
similarity index 100%
rename from exercises/queen-attack/src/queen_attack.c
rename to exercises/practice/queen-attack/src/queen_attack.c
diff --git a/exercises/queen-attack/src/queen_attack.h b/exercises/practice/queen-attack/src/queen_attack.h
similarity index 100%
rename from exercises/queen-attack/src/queen_attack.h
rename to exercises/practice/queen-attack/src/queen_attack.h
diff --git a/exercises/queen-attack/test/test_queen_attack.c b/exercises/practice/queen-attack/test/test_queen_attack.c
similarity index 100%
rename from exercises/queen-attack/test/test_queen_attack.c
rename to exercises/practice/queen-attack/test/test_queen_attack.c
diff --git a/exercises/queen-attack/test/vendor/unity.c b/exercises/practice/queen-attack/test/vendor/unity.c
similarity index 100%
rename from exercises/queen-attack/test/vendor/unity.c
rename to exercises/practice/queen-attack/test/vendor/unity.c
diff --git a/exercises/queen-attack/test/vendor/unity.h b/exercises/practice/queen-attack/test/vendor/unity.h
similarity index 100%
rename from exercises/queen-attack/test/vendor/unity.h
rename to exercises/practice/queen-attack/test/vendor/unity.h
diff --git a/exercises/queen-attack/test/vendor/unity_internals.h b/exercises/practice/queen-attack/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/queen-attack/test/vendor/unity_internals.h
rename to exercises/practice/queen-attack/test/vendor/unity_internals.h
diff --git a/exercises/rail-fence-cipher/.meta/tests.toml b/exercises/practice/rail-fence-cipher/.meta/tests.toml
similarity index 100%
rename from exercises/rail-fence-cipher/.meta/tests.toml
rename to exercises/practice/rail-fence-cipher/.meta/tests.toml
diff --git a/exercises/rail-fence-cipher/README.md b/exercises/practice/rail-fence-cipher/README.md
similarity index 100%
rename from exercises/rail-fence-cipher/README.md
rename to exercises/practice/rail-fence-cipher/README.md
diff --git a/exercises/rail-fence-cipher/makefile b/exercises/practice/rail-fence-cipher/makefile
similarity index 100%
rename from exercises/rail-fence-cipher/makefile
rename to exercises/practice/rail-fence-cipher/makefile
diff --git a/exercises/rail-fence-cipher/src/example.c b/exercises/practice/rail-fence-cipher/src/example.c
similarity index 100%
rename from exercises/rail-fence-cipher/src/example.c
rename to exercises/practice/rail-fence-cipher/src/example.c
diff --git a/exercises/rail-fence-cipher/src/rail_fence_cipher.c b/exercises/practice/rail-fence-cipher/src/rail_fence_cipher.c
similarity index 100%
rename from exercises/rail-fence-cipher/src/rail_fence_cipher.c
rename to exercises/practice/rail-fence-cipher/src/rail_fence_cipher.c
diff --git a/exercises/rail-fence-cipher/src/rail_fence_cipher.h b/exercises/practice/rail-fence-cipher/src/rail_fence_cipher.h
similarity index 100%
rename from exercises/rail-fence-cipher/src/rail_fence_cipher.h
rename to exercises/practice/rail-fence-cipher/src/rail_fence_cipher.h
diff --git a/exercises/rail-fence-cipher/test/test_rail_fence_cipher.c b/exercises/practice/rail-fence-cipher/test/test_rail_fence_cipher.c
similarity index 100%
rename from exercises/rail-fence-cipher/test/test_rail_fence_cipher.c
rename to exercises/practice/rail-fence-cipher/test/test_rail_fence_cipher.c
diff --git a/exercises/rail-fence-cipher/test/vendor/unity.c b/exercises/practice/rail-fence-cipher/test/vendor/unity.c
similarity index 100%
rename from exercises/rail-fence-cipher/test/vendor/unity.c
rename to exercises/practice/rail-fence-cipher/test/vendor/unity.c
diff --git a/exercises/rail-fence-cipher/test/vendor/unity.h b/exercises/practice/rail-fence-cipher/test/vendor/unity.h
similarity index 100%
rename from exercises/rail-fence-cipher/test/vendor/unity.h
rename to exercises/practice/rail-fence-cipher/test/vendor/unity.h
diff --git a/exercises/rail-fence-cipher/test/vendor/unity_internals.h b/exercises/practice/rail-fence-cipher/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/rail-fence-cipher/test/vendor/unity_internals.h
rename to exercises/practice/rail-fence-cipher/test/vendor/unity_internals.h
diff --git a/exercises/raindrops/.meta/tests.toml b/exercises/practice/raindrops/.meta/tests.toml
similarity index 100%
rename from exercises/raindrops/.meta/tests.toml
rename to exercises/practice/raindrops/.meta/tests.toml
diff --git a/exercises/raindrops/README.md b/exercises/practice/raindrops/README.md
similarity index 100%
rename from exercises/raindrops/README.md
rename to exercises/practice/raindrops/README.md
diff --git a/exercises/raindrops/makefile b/exercises/practice/raindrops/makefile
similarity index 100%
rename from exercises/raindrops/makefile
rename to exercises/practice/raindrops/makefile
diff --git a/exercises/raindrops/src/example.c b/exercises/practice/raindrops/src/example.c
similarity index 100%
rename from exercises/raindrops/src/example.c
rename to exercises/practice/raindrops/src/example.c
diff --git a/exercises/raindrops/src/example.h b/exercises/practice/raindrops/src/example.h
similarity index 100%
rename from exercises/raindrops/src/example.h
rename to exercises/practice/raindrops/src/example.h
diff --git a/exercises/raindrops/src/raindrops.c b/exercises/practice/raindrops/src/raindrops.c
similarity index 100%
rename from exercises/raindrops/src/raindrops.c
rename to exercises/practice/raindrops/src/raindrops.c
diff --git a/exercises/raindrops/src/raindrops.h b/exercises/practice/raindrops/src/raindrops.h
similarity index 100%
rename from exercises/raindrops/src/raindrops.h
rename to exercises/practice/raindrops/src/raindrops.h
diff --git a/exercises/raindrops/test/test_raindrops.c b/exercises/practice/raindrops/test/test_raindrops.c
similarity index 100%
rename from exercises/raindrops/test/test_raindrops.c
rename to exercises/practice/raindrops/test/test_raindrops.c
diff --git a/exercises/raindrops/test/vendor/unity.c b/exercises/practice/raindrops/test/vendor/unity.c
similarity index 100%
rename from exercises/raindrops/test/vendor/unity.c
rename to exercises/practice/raindrops/test/vendor/unity.c
diff --git a/exercises/raindrops/test/vendor/unity.h b/exercises/practice/raindrops/test/vendor/unity.h
similarity index 100%
rename from exercises/raindrops/test/vendor/unity.h
rename to exercises/practice/raindrops/test/vendor/unity.h
diff --git a/exercises/raindrops/test/vendor/unity_internals.h b/exercises/practice/raindrops/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/raindrops/test/vendor/unity_internals.h
rename to exercises/practice/raindrops/test/vendor/unity_internals.h
diff --git a/exercises/rational-numbers/.meta/tests.toml b/exercises/practice/rational-numbers/.meta/tests.toml
similarity index 100%
rename from exercises/rational-numbers/.meta/tests.toml
rename to exercises/practice/rational-numbers/.meta/tests.toml
diff --git a/exercises/rational-numbers/README.md b/exercises/practice/rational-numbers/README.md
similarity index 100%
rename from exercises/rational-numbers/README.md
rename to exercises/practice/rational-numbers/README.md
diff --git a/exercises/rational-numbers/makefile b/exercises/practice/rational-numbers/makefile
similarity index 100%
rename from exercises/rational-numbers/makefile
rename to exercises/practice/rational-numbers/makefile
diff --git a/exercises/rational-numbers/src/example.c b/exercises/practice/rational-numbers/src/example.c
similarity index 100%
rename from exercises/rational-numbers/src/example.c
rename to exercises/practice/rational-numbers/src/example.c
diff --git a/exercises/rational-numbers/src/example.h b/exercises/practice/rational-numbers/src/example.h
similarity index 100%
rename from exercises/rational-numbers/src/example.h
rename to exercises/practice/rational-numbers/src/example.h
diff --git a/exercises/rational-numbers/src/rational_numbers.c b/exercises/practice/rational-numbers/src/rational_numbers.c
similarity index 100%
rename from exercises/rational-numbers/src/rational_numbers.c
rename to exercises/practice/rational-numbers/src/rational_numbers.c
diff --git a/exercises/rational-numbers/src/rational_numbers.h b/exercises/practice/rational-numbers/src/rational_numbers.h
similarity index 100%
rename from exercises/rational-numbers/src/rational_numbers.h
rename to exercises/practice/rational-numbers/src/rational_numbers.h
diff --git a/exercises/rational-numbers/test/test_rational_numbers.c b/exercises/practice/rational-numbers/test/test_rational_numbers.c
similarity index 100%
rename from exercises/rational-numbers/test/test_rational_numbers.c
rename to exercises/practice/rational-numbers/test/test_rational_numbers.c
diff --git a/exercises/rational-numbers/test/vendor/unity.c b/exercises/practice/rational-numbers/test/vendor/unity.c
similarity index 100%
rename from exercises/rational-numbers/test/vendor/unity.c
rename to exercises/practice/rational-numbers/test/vendor/unity.c
diff --git a/exercises/rational-numbers/test/vendor/unity.h b/exercises/practice/rational-numbers/test/vendor/unity.h
similarity index 100%
rename from exercises/rational-numbers/test/vendor/unity.h
rename to exercises/practice/rational-numbers/test/vendor/unity.h
diff --git a/exercises/rational-numbers/test/vendor/unity_internals.h b/exercises/practice/rational-numbers/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/rational-numbers/test/vendor/unity_internals.h
rename to exercises/practice/rational-numbers/test/vendor/unity_internals.h
diff --git a/exercises/react/.meta/tests.toml b/exercises/practice/react/.meta/tests.toml
similarity index 100%
rename from exercises/react/.meta/tests.toml
rename to exercises/practice/react/.meta/tests.toml
diff --git a/exercises/react/README.md b/exercises/practice/react/README.md
similarity index 100%
rename from exercises/react/README.md
rename to exercises/practice/react/README.md
diff --git a/exercises/react/makefile b/exercises/practice/react/makefile
similarity index 100%
rename from exercises/react/makefile
rename to exercises/practice/react/makefile
diff --git a/exercises/react/src/example.c b/exercises/practice/react/src/example.c
similarity index 100%
rename from exercises/react/src/example.c
rename to exercises/practice/react/src/example.c
diff --git a/exercises/react/src/react.c b/exercises/practice/react/src/react.c
similarity index 100%
rename from exercises/react/src/react.c
rename to exercises/practice/react/src/react.c
diff --git a/exercises/react/src/react.h b/exercises/practice/react/src/react.h
similarity index 100%
rename from exercises/react/src/react.h
rename to exercises/practice/react/src/react.h
diff --git a/exercises/react/test/test_react.c b/exercises/practice/react/test/test_react.c
similarity index 100%
rename from exercises/react/test/test_react.c
rename to exercises/practice/react/test/test_react.c
diff --git a/exercises/react/test/vendor/unity.c b/exercises/practice/react/test/vendor/unity.c
similarity index 100%
rename from exercises/react/test/vendor/unity.c
rename to exercises/practice/react/test/vendor/unity.c
diff --git a/exercises/react/test/vendor/unity.h b/exercises/practice/react/test/vendor/unity.h
similarity index 100%
rename from exercises/react/test/vendor/unity.h
rename to exercises/practice/react/test/vendor/unity.h
diff --git a/exercises/react/test/vendor/unity_internals.h b/exercises/practice/react/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/react/test/vendor/unity_internals.h
rename to exercises/practice/react/test/vendor/unity_internals.h
diff --git a/exercises/resistor-color-duo/.meta/tests.toml b/exercises/practice/resistor-color-duo/.meta/tests.toml
similarity index 100%
rename from exercises/resistor-color-duo/.meta/tests.toml
rename to exercises/practice/resistor-color-duo/.meta/tests.toml
diff --git a/exercises/resistor-color-duo/README.md b/exercises/practice/resistor-color-duo/README.md
similarity index 100%
rename from exercises/resistor-color-duo/README.md
rename to exercises/practice/resistor-color-duo/README.md
diff --git a/exercises/resistor-color-duo/makefile b/exercises/practice/resistor-color-duo/makefile
similarity index 100%
rename from exercises/resistor-color-duo/makefile
rename to exercises/practice/resistor-color-duo/makefile
diff --git a/exercises/resistor-color-duo/src/example.c b/exercises/practice/resistor-color-duo/src/example.c
similarity index 100%
rename from exercises/resistor-color-duo/src/example.c
rename to exercises/practice/resistor-color-duo/src/example.c
diff --git a/exercises/resistor-color-duo/src/example.h b/exercises/practice/resistor-color-duo/src/example.h
similarity index 100%
rename from exercises/resistor-color-duo/src/example.h
rename to exercises/practice/resistor-color-duo/src/example.h
diff --git a/exercises/resistor-color-duo/src/resistor_color_duo.c b/exercises/practice/resistor-color-duo/src/resistor_color_duo.c
similarity index 100%
rename from exercises/resistor-color-duo/src/resistor_color_duo.c
rename to exercises/practice/resistor-color-duo/src/resistor_color_duo.c
diff --git a/exercises/resistor-color-duo/src/resistor_color_duo.h b/exercises/practice/resistor-color-duo/src/resistor_color_duo.h
similarity index 100%
rename from exercises/resistor-color-duo/src/resistor_color_duo.h
rename to exercises/practice/resistor-color-duo/src/resistor_color_duo.h
diff --git a/exercises/resistor-color-duo/test/test_resistor_color_duo.c b/exercises/practice/resistor-color-duo/test/test_resistor_color_duo.c
similarity index 100%
rename from exercises/resistor-color-duo/test/test_resistor_color_duo.c
rename to exercises/practice/resistor-color-duo/test/test_resistor_color_duo.c
diff --git a/exercises/resistor-color-duo/test/vendor/unity.c b/exercises/practice/resistor-color-duo/test/vendor/unity.c
similarity index 100%
rename from exercises/resistor-color-duo/test/vendor/unity.c
rename to exercises/practice/resistor-color-duo/test/vendor/unity.c
diff --git a/exercises/resistor-color-duo/test/vendor/unity.h b/exercises/practice/resistor-color-duo/test/vendor/unity.h
similarity index 100%
rename from exercises/resistor-color-duo/test/vendor/unity.h
rename to exercises/practice/resistor-color-duo/test/vendor/unity.h
diff --git a/exercises/resistor-color-duo/test/vendor/unity_internals.h b/exercises/practice/resistor-color-duo/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/resistor-color-duo/test/vendor/unity_internals.h
rename to exercises/practice/resistor-color-duo/test/vendor/unity_internals.h
diff --git a/exercises/resistor-color-trio/.meta/tests.toml b/exercises/practice/resistor-color-trio/.meta/tests.toml
similarity index 100%
rename from exercises/resistor-color-trio/.meta/tests.toml
rename to exercises/practice/resistor-color-trio/.meta/tests.toml
diff --git a/exercises/resistor-color-trio/README.md b/exercises/practice/resistor-color-trio/README.md
similarity index 100%
rename from exercises/resistor-color-trio/README.md
rename to exercises/practice/resistor-color-trio/README.md
diff --git a/exercises/resistor-color-trio/makefile b/exercises/practice/resistor-color-trio/makefile
similarity index 100%
rename from exercises/resistor-color-trio/makefile
rename to exercises/practice/resistor-color-trio/makefile
diff --git a/exercises/resistor-color-trio/src/example.c b/exercises/practice/resistor-color-trio/src/example.c
similarity index 100%
rename from exercises/resistor-color-trio/src/example.c
rename to exercises/practice/resistor-color-trio/src/example.c
diff --git a/exercises/resistor-color-trio/src/example.h b/exercises/practice/resistor-color-trio/src/example.h
similarity index 100%
rename from exercises/resistor-color-trio/src/example.h
rename to exercises/practice/resistor-color-trio/src/example.h
diff --git a/exercises/resistor-color-trio/src/resistor_color_trio.c b/exercises/practice/resistor-color-trio/src/resistor_color_trio.c
similarity index 100%
rename from exercises/resistor-color-trio/src/resistor_color_trio.c
rename to exercises/practice/resistor-color-trio/src/resistor_color_trio.c
diff --git a/exercises/resistor-color-trio/src/resistor_color_trio.h b/exercises/practice/resistor-color-trio/src/resistor_color_trio.h
similarity index 100%
rename from exercises/resistor-color-trio/src/resistor_color_trio.h
rename to exercises/practice/resistor-color-trio/src/resistor_color_trio.h
diff --git a/exercises/resistor-color-trio/test/test_resistor_color_trio.c b/exercises/practice/resistor-color-trio/test/test_resistor_color_trio.c
similarity index 100%
rename from exercises/resistor-color-trio/test/test_resistor_color_trio.c
rename to exercises/practice/resistor-color-trio/test/test_resistor_color_trio.c
diff --git a/exercises/resistor-color-trio/test/vendor/unity.c b/exercises/practice/resistor-color-trio/test/vendor/unity.c
similarity index 100%
rename from exercises/resistor-color-trio/test/vendor/unity.c
rename to exercises/practice/resistor-color-trio/test/vendor/unity.c
diff --git a/exercises/resistor-color-trio/test/vendor/unity.h b/exercises/practice/resistor-color-trio/test/vendor/unity.h
similarity index 100%
rename from exercises/resistor-color-trio/test/vendor/unity.h
rename to exercises/practice/resistor-color-trio/test/vendor/unity.h
diff --git a/exercises/resistor-color-trio/test/vendor/unity_internals.h b/exercises/practice/resistor-color-trio/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/resistor-color-trio/test/vendor/unity_internals.h
rename to exercises/practice/resistor-color-trio/test/vendor/unity_internals.h
diff --git a/exercises/resistor-color/.meta/tests.toml b/exercises/practice/resistor-color/.meta/tests.toml
similarity index 100%
rename from exercises/resistor-color/.meta/tests.toml
rename to exercises/practice/resistor-color/.meta/tests.toml
diff --git a/exercises/resistor-color/README.md b/exercises/practice/resistor-color/README.md
similarity index 100%
rename from exercises/resistor-color/README.md
rename to exercises/practice/resistor-color/README.md
diff --git a/exercises/resistor-color/makefile b/exercises/practice/resistor-color/makefile
similarity index 100%
rename from exercises/resistor-color/makefile
rename to exercises/practice/resistor-color/makefile
diff --git a/exercises/resistor-color/src/example.c b/exercises/practice/resistor-color/src/example.c
similarity index 100%
rename from exercises/resistor-color/src/example.c
rename to exercises/practice/resistor-color/src/example.c
diff --git a/exercises/resistor-color/src/example.h b/exercises/practice/resistor-color/src/example.h
similarity index 100%
rename from exercises/resistor-color/src/example.h
rename to exercises/practice/resistor-color/src/example.h
diff --git a/exercises/resistor-color/src/resistor_color.c b/exercises/practice/resistor-color/src/resistor_color.c
similarity index 100%
rename from exercises/resistor-color/src/resistor_color.c
rename to exercises/practice/resistor-color/src/resistor_color.c
diff --git a/exercises/resistor-color/src/resistor_color.h b/exercises/practice/resistor-color/src/resistor_color.h
similarity index 100%
rename from exercises/resistor-color/src/resistor_color.h
rename to exercises/practice/resistor-color/src/resistor_color.h
diff --git a/exercises/resistor-color/test/test_resistor_color.c b/exercises/practice/resistor-color/test/test_resistor_color.c
similarity index 100%
rename from exercises/resistor-color/test/test_resistor_color.c
rename to exercises/practice/resistor-color/test/test_resistor_color.c
diff --git a/exercises/resistor-color/test/vendor/unity.c b/exercises/practice/resistor-color/test/vendor/unity.c
similarity index 100%
rename from exercises/resistor-color/test/vendor/unity.c
rename to exercises/practice/resistor-color/test/vendor/unity.c
diff --git a/exercises/resistor-color/test/vendor/unity.h b/exercises/practice/resistor-color/test/vendor/unity.h
similarity index 100%
rename from exercises/resistor-color/test/vendor/unity.h
rename to exercises/practice/resistor-color/test/vendor/unity.h
diff --git a/exercises/resistor-color/test/vendor/unity_internals.h b/exercises/practice/resistor-color/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/resistor-color/test/vendor/unity_internals.h
rename to exercises/practice/resistor-color/test/vendor/unity_internals.h
diff --git a/exercises/rna-transcription/.meta/tests.toml b/exercises/practice/rna-transcription/.meta/tests.toml
similarity index 100%
rename from exercises/rna-transcription/.meta/tests.toml
rename to exercises/practice/rna-transcription/.meta/tests.toml
diff --git a/exercises/rna-transcription/README.md b/exercises/practice/rna-transcription/README.md
similarity index 100%
rename from exercises/rna-transcription/README.md
rename to exercises/practice/rna-transcription/README.md
diff --git a/exercises/rna-transcription/makefile b/exercises/practice/rna-transcription/makefile
similarity index 100%
rename from exercises/rna-transcription/makefile
rename to exercises/practice/rna-transcription/makefile
diff --git a/exercises/rna-transcription/src/example.c b/exercises/practice/rna-transcription/src/example.c
similarity index 100%
rename from exercises/rna-transcription/src/example.c
rename to exercises/practice/rna-transcription/src/example.c
diff --git a/exercises/rna-transcription/src/example.h b/exercises/practice/rna-transcription/src/example.h
similarity index 100%
rename from exercises/rna-transcription/src/example.h
rename to exercises/practice/rna-transcription/src/example.h
diff --git a/exercises/rna-transcription/src/rna_transcription.c b/exercises/practice/rna-transcription/src/rna_transcription.c
similarity index 100%
rename from exercises/rna-transcription/src/rna_transcription.c
rename to exercises/practice/rna-transcription/src/rna_transcription.c
diff --git a/exercises/rna-transcription/src/rna_transcription.h b/exercises/practice/rna-transcription/src/rna_transcription.h
similarity index 100%
rename from exercises/rna-transcription/src/rna_transcription.h
rename to exercises/practice/rna-transcription/src/rna_transcription.h
diff --git a/exercises/rna-transcription/test/test_rna_transcription.c b/exercises/practice/rna-transcription/test/test_rna_transcription.c
similarity index 100%
rename from exercises/rna-transcription/test/test_rna_transcription.c
rename to exercises/practice/rna-transcription/test/test_rna_transcription.c
diff --git a/exercises/rna-transcription/test/vendor/unity.c b/exercises/practice/rna-transcription/test/vendor/unity.c
similarity index 100%
rename from exercises/rna-transcription/test/vendor/unity.c
rename to exercises/practice/rna-transcription/test/vendor/unity.c
diff --git a/exercises/rna-transcription/test/vendor/unity.h b/exercises/practice/rna-transcription/test/vendor/unity.h
similarity index 100%
rename from exercises/rna-transcription/test/vendor/unity.h
rename to exercises/practice/rna-transcription/test/vendor/unity.h
diff --git a/exercises/rna-transcription/test/vendor/unity_internals.h b/exercises/practice/rna-transcription/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/rna-transcription/test/vendor/unity_internals.h
rename to exercises/practice/rna-transcription/test/vendor/unity_internals.h
diff --git a/exercises/robot-simulator/.meta/tests.toml b/exercises/practice/robot-simulator/.meta/tests.toml
similarity index 100%
rename from exercises/robot-simulator/.meta/tests.toml
rename to exercises/practice/robot-simulator/.meta/tests.toml
diff --git a/exercises/robot-simulator/README.md b/exercises/practice/robot-simulator/README.md
similarity index 100%
rename from exercises/robot-simulator/README.md
rename to exercises/practice/robot-simulator/README.md
diff --git a/exercises/robot-simulator/makefile b/exercises/practice/robot-simulator/makefile
similarity index 100%
rename from exercises/robot-simulator/makefile
rename to exercises/practice/robot-simulator/makefile
diff --git a/exercises/robot-simulator/src/example.c b/exercises/practice/robot-simulator/src/example.c
similarity index 100%
rename from exercises/robot-simulator/src/example.c
rename to exercises/practice/robot-simulator/src/example.c
diff --git a/exercises/robot-simulator/src/robot_simulator.c b/exercises/practice/robot-simulator/src/robot_simulator.c
similarity index 100%
rename from exercises/robot-simulator/src/robot_simulator.c
rename to exercises/practice/robot-simulator/src/robot_simulator.c
diff --git a/exercises/robot-simulator/src/robot_simulator.h b/exercises/practice/robot-simulator/src/robot_simulator.h
similarity index 100%
rename from exercises/robot-simulator/src/robot_simulator.h
rename to exercises/practice/robot-simulator/src/robot_simulator.h
diff --git a/exercises/robot-simulator/test/test_robot_simulator.c b/exercises/practice/robot-simulator/test/test_robot_simulator.c
similarity index 100%
rename from exercises/robot-simulator/test/test_robot_simulator.c
rename to exercises/practice/robot-simulator/test/test_robot_simulator.c
diff --git a/exercises/robot-simulator/test/vendor/unity.c b/exercises/practice/robot-simulator/test/vendor/unity.c
similarity index 100%
rename from exercises/robot-simulator/test/vendor/unity.c
rename to exercises/practice/robot-simulator/test/vendor/unity.c
diff --git a/exercises/robot-simulator/test/vendor/unity.h b/exercises/practice/robot-simulator/test/vendor/unity.h
similarity index 100%
rename from exercises/robot-simulator/test/vendor/unity.h
rename to exercises/practice/robot-simulator/test/vendor/unity.h
diff --git a/exercises/robot-simulator/test/vendor/unity_internals.h b/exercises/practice/robot-simulator/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/robot-simulator/test/vendor/unity_internals.h
rename to exercises/practice/robot-simulator/test/vendor/unity_internals.h
diff --git a/exercises/roman-numerals/.meta/tests.toml b/exercises/practice/roman-numerals/.meta/tests.toml
similarity index 100%
rename from exercises/roman-numerals/.meta/tests.toml
rename to exercises/practice/roman-numerals/.meta/tests.toml
diff --git a/exercises/roman-numerals/README.md b/exercises/practice/roman-numerals/README.md
similarity index 100%
rename from exercises/roman-numerals/README.md
rename to exercises/practice/roman-numerals/README.md
diff --git a/exercises/roman-numerals/makefile b/exercises/practice/roman-numerals/makefile
similarity index 100%
rename from exercises/roman-numerals/makefile
rename to exercises/practice/roman-numerals/makefile
diff --git a/exercises/roman-numerals/src/example.c b/exercises/practice/roman-numerals/src/example.c
similarity index 100%
rename from exercises/roman-numerals/src/example.c
rename to exercises/practice/roman-numerals/src/example.c
diff --git a/exercises/roman-numerals/src/example.h b/exercises/practice/roman-numerals/src/example.h
similarity index 100%
rename from exercises/roman-numerals/src/example.h
rename to exercises/practice/roman-numerals/src/example.h
diff --git a/exercises/roman-numerals/src/roman_numerals.c b/exercises/practice/roman-numerals/src/roman_numerals.c
similarity index 100%
rename from exercises/roman-numerals/src/roman_numerals.c
rename to exercises/practice/roman-numerals/src/roman_numerals.c
diff --git a/exercises/roman-numerals/src/roman_numerals.h b/exercises/practice/roman-numerals/src/roman_numerals.h
similarity index 100%
rename from exercises/roman-numerals/src/roman_numerals.h
rename to exercises/practice/roman-numerals/src/roman_numerals.h
diff --git a/exercises/roman-numerals/test/test_roman_numerals.c b/exercises/practice/roman-numerals/test/test_roman_numerals.c
similarity index 100%
rename from exercises/roman-numerals/test/test_roman_numerals.c
rename to exercises/practice/roman-numerals/test/test_roman_numerals.c
diff --git a/exercises/roman-numerals/test/vendor/unity.c b/exercises/practice/roman-numerals/test/vendor/unity.c
similarity index 100%
rename from exercises/roman-numerals/test/vendor/unity.c
rename to exercises/practice/roman-numerals/test/vendor/unity.c
diff --git a/exercises/roman-numerals/test/vendor/unity.h b/exercises/practice/roman-numerals/test/vendor/unity.h
similarity index 100%
rename from exercises/roman-numerals/test/vendor/unity.h
rename to exercises/practice/roman-numerals/test/vendor/unity.h
diff --git a/exercises/roman-numerals/test/vendor/unity_internals.h b/exercises/practice/roman-numerals/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/roman-numerals/test/vendor/unity_internals.h
rename to exercises/practice/roman-numerals/test/vendor/unity_internals.h
diff --git a/exercises/run-length-encoding/.meta/tests.toml b/exercises/practice/run-length-encoding/.meta/tests.toml
similarity index 100%
rename from exercises/run-length-encoding/.meta/tests.toml
rename to exercises/practice/run-length-encoding/.meta/tests.toml
diff --git a/exercises/run-length-encoding/README.md b/exercises/practice/run-length-encoding/README.md
similarity index 100%
rename from exercises/run-length-encoding/README.md
rename to exercises/practice/run-length-encoding/README.md
diff --git a/exercises/run-length-encoding/makefile b/exercises/practice/run-length-encoding/makefile
similarity index 100%
rename from exercises/run-length-encoding/makefile
rename to exercises/practice/run-length-encoding/makefile
diff --git a/exercises/run-length-encoding/src/example.c b/exercises/practice/run-length-encoding/src/example.c
similarity index 100%
rename from exercises/run-length-encoding/src/example.c
rename to exercises/practice/run-length-encoding/src/example.c
diff --git a/exercises/run-length-encoding/src/example.h b/exercises/practice/run-length-encoding/src/example.h
similarity index 100%
rename from exercises/run-length-encoding/src/example.h
rename to exercises/practice/run-length-encoding/src/example.h
diff --git a/exercises/run-length-encoding/src/run_length_encoding.c b/exercises/practice/run-length-encoding/src/run_length_encoding.c
similarity index 100%
rename from exercises/run-length-encoding/src/run_length_encoding.c
rename to exercises/practice/run-length-encoding/src/run_length_encoding.c
diff --git a/exercises/run-length-encoding/src/run_length_encoding.h b/exercises/practice/run-length-encoding/src/run_length_encoding.h
similarity index 100%
rename from exercises/run-length-encoding/src/run_length_encoding.h
rename to exercises/practice/run-length-encoding/src/run_length_encoding.h
diff --git a/exercises/run-length-encoding/test/test_run_length_encoding.c b/exercises/practice/run-length-encoding/test/test_run_length_encoding.c
similarity index 100%
rename from exercises/run-length-encoding/test/test_run_length_encoding.c
rename to exercises/practice/run-length-encoding/test/test_run_length_encoding.c
diff --git a/exercises/run-length-encoding/test/vendor/unity.c b/exercises/practice/run-length-encoding/test/vendor/unity.c
similarity index 100%
rename from exercises/run-length-encoding/test/vendor/unity.c
rename to exercises/practice/run-length-encoding/test/vendor/unity.c
diff --git a/exercises/run-length-encoding/test/vendor/unity.h b/exercises/practice/run-length-encoding/test/vendor/unity.h
similarity index 100%
rename from exercises/run-length-encoding/test/vendor/unity.h
rename to exercises/practice/run-length-encoding/test/vendor/unity.h
diff --git a/exercises/run-length-encoding/test/vendor/unity_internals.h b/exercises/practice/run-length-encoding/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/run-length-encoding/test/vendor/unity_internals.h
rename to exercises/practice/run-length-encoding/test/vendor/unity_internals.h
diff --git a/exercises/saddle-points/.meta/tests.toml b/exercises/practice/saddle-points/.meta/tests.toml
similarity index 100%
rename from exercises/saddle-points/.meta/tests.toml
rename to exercises/practice/saddle-points/.meta/tests.toml
diff --git a/exercises/saddle-points/README.md b/exercises/practice/saddle-points/README.md
similarity index 100%
rename from exercises/saddle-points/README.md
rename to exercises/practice/saddle-points/README.md
diff --git a/exercises/saddle-points/makefile b/exercises/practice/saddle-points/makefile
similarity index 100%
rename from exercises/saddle-points/makefile
rename to exercises/practice/saddle-points/makefile
diff --git a/exercises/saddle-points/src/example.c b/exercises/practice/saddle-points/src/example.c
similarity index 100%
rename from exercises/saddle-points/src/example.c
rename to exercises/practice/saddle-points/src/example.c
diff --git a/exercises/saddle-points/src/example.h b/exercises/practice/saddle-points/src/example.h
similarity index 100%
rename from exercises/saddle-points/src/example.h
rename to exercises/practice/saddle-points/src/example.h
diff --git a/exercises/saddle-points/src/saddle_points.c b/exercises/practice/saddle-points/src/saddle_points.c
similarity index 100%
rename from exercises/saddle-points/src/saddle_points.c
rename to exercises/practice/saddle-points/src/saddle_points.c
diff --git a/exercises/saddle-points/src/saddle_points.h b/exercises/practice/saddle-points/src/saddle_points.h
similarity index 100%
rename from exercises/saddle-points/src/saddle_points.h
rename to exercises/practice/saddle-points/src/saddle_points.h
diff --git a/exercises/saddle-points/test/test_saddle_points.c b/exercises/practice/saddle-points/test/test_saddle_points.c
similarity index 100%
rename from exercises/saddle-points/test/test_saddle_points.c
rename to exercises/practice/saddle-points/test/test_saddle_points.c
diff --git a/exercises/saddle-points/test/vendor/unity.c b/exercises/practice/saddle-points/test/vendor/unity.c
similarity index 100%
rename from exercises/saddle-points/test/vendor/unity.c
rename to exercises/practice/saddle-points/test/vendor/unity.c
diff --git a/exercises/saddle-points/test/vendor/unity.h b/exercises/practice/saddle-points/test/vendor/unity.h
similarity index 100%
rename from exercises/saddle-points/test/vendor/unity.h
rename to exercises/practice/saddle-points/test/vendor/unity.h
diff --git a/exercises/saddle-points/test/vendor/unity_internals.h b/exercises/practice/saddle-points/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/saddle-points/test/vendor/unity_internals.h
rename to exercises/practice/saddle-points/test/vendor/unity_internals.h
diff --git a/exercises/say/.meta/tests.toml b/exercises/practice/say/.meta/tests.toml
similarity index 100%
rename from exercises/say/.meta/tests.toml
rename to exercises/practice/say/.meta/tests.toml
diff --git a/exercises/say/README.md b/exercises/practice/say/README.md
similarity index 100%
rename from exercises/say/README.md
rename to exercises/practice/say/README.md
diff --git a/exercises/say/makefile b/exercises/practice/say/makefile
similarity index 100%
rename from exercises/say/makefile
rename to exercises/practice/say/makefile
diff --git a/exercises/say/src/example.c b/exercises/practice/say/src/example.c
similarity index 100%
rename from exercises/say/src/example.c
rename to exercises/practice/say/src/example.c
diff --git a/exercises/say/src/example.h b/exercises/practice/say/src/example.h
similarity index 100%
rename from exercises/say/src/example.h
rename to exercises/practice/say/src/example.h
diff --git a/exercises/say/src/say.c b/exercises/practice/say/src/say.c
similarity index 100%
rename from exercises/say/src/say.c
rename to exercises/practice/say/src/say.c
diff --git a/exercises/say/src/say.h b/exercises/practice/say/src/say.h
similarity index 100%
rename from exercises/say/src/say.h
rename to exercises/practice/say/src/say.h
diff --git a/exercises/say/test/test_say.c b/exercises/practice/say/test/test_say.c
similarity index 100%
rename from exercises/say/test/test_say.c
rename to exercises/practice/say/test/test_say.c
diff --git a/exercises/say/test/vendor/unity.c b/exercises/practice/say/test/vendor/unity.c
similarity index 100%
rename from exercises/say/test/vendor/unity.c
rename to exercises/practice/say/test/vendor/unity.c
diff --git a/exercises/say/test/vendor/unity.h b/exercises/practice/say/test/vendor/unity.h
similarity index 100%
rename from exercises/say/test/vendor/unity.h
rename to exercises/practice/say/test/vendor/unity.h
diff --git a/exercises/say/test/vendor/unity_internals.h b/exercises/practice/say/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/say/test/vendor/unity_internals.h
rename to exercises/practice/say/test/vendor/unity_internals.h
diff --git a/exercises/scrabble-score/.meta/tests.toml b/exercises/practice/scrabble-score/.meta/tests.toml
similarity index 100%
rename from exercises/scrabble-score/.meta/tests.toml
rename to exercises/practice/scrabble-score/.meta/tests.toml
diff --git a/exercises/scrabble-score/README.md b/exercises/practice/scrabble-score/README.md
similarity index 100%
rename from exercises/scrabble-score/README.md
rename to exercises/practice/scrabble-score/README.md
diff --git a/exercises/scrabble-score/makefile b/exercises/practice/scrabble-score/makefile
similarity index 100%
rename from exercises/scrabble-score/makefile
rename to exercises/practice/scrabble-score/makefile
diff --git a/exercises/scrabble-score/src/example.c b/exercises/practice/scrabble-score/src/example.c
similarity index 100%
rename from exercises/scrabble-score/src/example.c
rename to exercises/practice/scrabble-score/src/example.c
diff --git a/exercises/scrabble-score/src/example.h b/exercises/practice/scrabble-score/src/example.h
similarity index 100%
rename from exercises/scrabble-score/src/example.h
rename to exercises/practice/scrabble-score/src/example.h
diff --git a/exercises/scrabble-score/src/scrabble_score.c b/exercises/practice/scrabble-score/src/scrabble_score.c
similarity index 100%
rename from exercises/scrabble-score/src/scrabble_score.c
rename to exercises/practice/scrabble-score/src/scrabble_score.c
diff --git a/exercises/scrabble-score/src/scrabble_score.h b/exercises/practice/scrabble-score/src/scrabble_score.h
similarity index 100%
rename from exercises/scrabble-score/src/scrabble_score.h
rename to exercises/practice/scrabble-score/src/scrabble_score.h
diff --git a/exercises/scrabble-score/test/test_scrabble_score.c b/exercises/practice/scrabble-score/test/test_scrabble_score.c
similarity index 100%
rename from exercises/scrabble-score/test/test_scrabble_score.c
rename to exercises/practice/scrabble-score/test/test_scrabble_score.c
diff --git a/exercises/scrabble-score/test/vendor/unity.c b/exercises/practice/scrabble-score/test/vendor/unity.c
similarity index 100%
rename from exercises/scrabble-score/test/vendor/unity.c
rename to exercises/practice/scrabble-score/test/vendor/unity.c
diff --git a/exercises/scrabble-score/test/vendor/unity.h b/exercises/practice/scrabble-score/test/vendor/unity.h
similarity index 100%
rename from exercises/scrabble-score/test/vendor/unity.h
rename to exercises/practice/scrabble-score/test/vendor/unity.h
diff --git a/exercises/scrabble-score/test/vendor/unity_internals.h b/exercises/practice/scrabble-score/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/scrabble-score/test/vendor/unity_internals.h
rename to exercises/practice/scrabble-score/test/vendor/unity_internals.h
diff --git a/exercises/secret-handshake/.meta/tests.toml b/exercises/practice/secret-handshake/.meta/tests.toml
similarity index 100%
rename from exercises/secret-handshake/.meta/tests.toml
rename to exercises/practice/secret-handshake/.meta/tests.toml
diff --git a/exercises/secret-handshake/README.md b/exercises/practice/secret-handshake/README.md
similarity index 100%
rename from exercises/secret-handshake/README.md
rename to exercises/practice/secret-handshake/README.md
diff --git a/exercises/secret-handshake/makefile b/exercises/practice/secret-handshake/makefile
similarity index 100%
rename from exercises/secret-handshake/makefile
rename to exercises/practice/secret-handshake/makefile
diff --git a/exercises/secret-handshake/src/example.c b/exercises/practice/secret-handshake/src/example.c
similarity index 100%
rename from exercises/secret-handshake/src/example.c
rename to exercises/practice/secret-handshake/src/example.c
diff --git a/exercises/secret-handshake/src/example.h b/exercises/practice/secret-handshake/src/example.h
similarity index 100%
rename from exercises/secret-handshake/src/example.h
rename to exercises/practice/secret-handshake/src/example.h
diff --git a/exercises/secret-handshake/src/secret_handshake.c b/exercises/practice/secret-handshake/src/secret_handshake.c
similarity index 100%
rename from exercises/secret-handshake/src/secret_handshake.c
rename to exercises/practice/secret-handshake/src/secret_handshake.c
diff --git a/exercises/secret-handshake/src/secret_handshake.h b/exercises/practice/secret-handshake/src/secret_handshake.h
similarity index 100%
rename from exercises/secret-handshake/src/secret_handshake.h
rename to exercises/practice/secret-handshake/src/secret_handshake.h
diff --git a/exercises/secret-handshake/test/test_secret_handshake.c b/exercises/practice/secret-handshake/test/test_secret_handshake.c
similarity index 100%
rename from exercises/secret-handshake/test/test_secret_handshake.c
rename to exercises/practice/secret-handshake/test/test_secret_handshake.c
diff --git a/exercises/secret-handshake/test/vendor/unity.c b/exercises/practice/secret-handshake/test/vendor/unity.c
similarity index 100%
rename from exercises/secret-handshake/test/vendor/unity.c
rename to exercises/practice/secret-handshake/test/vendor/unity.c
diff --git a/exercises/secret-handshake/test/vendor/unity.h b/exercises/practice/secret-handshake/test/vendor/unity.h
similarity index 100%
rename from exercises/secret-handshake/test/vendor/unity.h
rename to exercises/practice/secret-handshake/test/vendor/unity.h
diff --git a/exercises/secret-handshake/test/vendor/unity_internals.h b/exercises/practice/secret-handshake/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/secret-handshake/test/vendor/unity_internals.h
rename to exercises/practice/secret-handshake/test/vendor/unity_internals.h
diff --git a/exercises/series/.meta/tests.toml b/exercises/practice/series/.meta/tests.toml
similarity index 100%
rename from exercises/series/.meta/tests.toml
rename to exercises/practice/series/.meta/tests.toml
diff --git a/exercises/series/README.md b/exercises/practice/series/README.md
similarity index 100%
rename from exercises/series/README.md
rename to exercises/practice/series/README.md
diff --git a/exercises/series/makefile b/exercises/practice/series/makefile
similarity index 100%
rename from exercises/series/makefile
rename to exercises/practice/series/makefile
diff --git a/exercises/series/src/example.c b/exercises/practice/series/src/example.c
similarity index 100%
rename from exercises/series/src/example.c
rename to exercises/practice/series/src/example.c
diff --git a/exercises/series/src/series.c b/exercises/practice/series/src/series.c
similarity index 100%
rename from exercises/series/src/series.c
rename to exercises/practice/series/src/series.c
diff --git a/exercises/series/src/series.h b/exercises/practice/series/src/series.h
similarity index 100%
rename from exercises/series/src/series.h
rename to exercises/practice/series/src/series.h
diff --git a/exercises/series/test/test_series.c b/exercises/practice/series/test/test_series.c
similarity index 100%
rename from exercises/series/test/test_series.c
rename to exercises/practice/series/test/test_series.c
diff --git a/exercises/series/test/vendor/unity.c b/exercises/practice/series/test/vendor/unity.c
similarity index 100%
rename from exercises/series/test/vendor/unity.c
rename to exercises/practice/series/test/vendor/unity.c
diff --git a/exercises/series/test/vendor/unity.h b/exercises/practice/series/test/vendor/unity.h
similarity index 100%
rename from exercises/series/test/vendor/unity.h
rename to exercises/practice/series/test/vendor/unity.h
diff --git a/exercises/series/test/vendor/unity_internals.h b/exercises/practice/series/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/series/test/vendor/unity_internals.h
rename to exercises/practice/series/test/vendor/unity_internals.h
diff --git a/exercises/sieve/.meta/tests.toml b/exercises/practice/sieve/.meta/tests.toml
similarity index 100%
rename from exercises/sieve/.meta/tests.toml
rename to exercises/practice/sieve/.meta/tests.toml
diff --git a/exercises/sieve/README.md b/exercises/practice/sieve/README.md
similarity index 100%
rename from exercises/sieve/README.md
rename to exercises/practice/sieve/README.md
diff --git a/exercises/sieve/makefile b/exercises/practice/sieve/makefile
similarity index 100%
rename from exercises/sieve/makefile
rename to exercises/practice/sieve/makefile
diff --git a/exercises/sieve/src/example.c b/exercises/practice/sieve/src/example.c
similarity index 100%
rename from exercises/sieve/src/example.c
rename to exercises/practice/sieve/src/example.c
diff --git a/exercises/sieve/src/sieve.c b/exercises/practice/sieve/src/sieve.c
similarity index 100%
rename from exercises/sieve/src/sieve.c
rename to exercises/practice/sieve/src/sieve.c
diff --git a/exercises/sieve/src/sieve.h b/exercises/practice/sieve/src/sieve.h
similarity index 100%
rename from exercises/sieve/src/sieve.h
rename to exercises/practice/sieve/src/sieve.h
diff --git a/exercises/sieve/test/test_sieve.c b/exercises/practice/sieve/test/test_sieve.c
similarity index 100%
rename from exercises/sieve/test/test_sieve.c
rename to exercises/practice/sieve/test/test_sieve.c
diff --git a/exercises/sieve/test/vendor/unity.c b/exercises/practice/sieve/test/vendor/unity.c
similarity index 100%
rename from exercises/sieve/test/vendor/unity.c
rename to exercises/practice/sieve/test/vendor/unity.c
diff --git a/exercises/sieve/test/vendor/unity.h b/exercises/practice/sieve/test/vendor/unity.h
similarity index 100%
rename from exercises/sieve/test/vendor/unity.h
rename to exercises/practice/sieve/test/vendor/unity.h
diff --git a/exercises/sieve/test/vendor/unity_internals.h b/exercises/practice/sieve/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/sieve/test/vendor/unity_internals.h
rename to exercises/practice/sieve/test/vendor/unity_internals.h
diff --git a/exercises/space-age/.meta/tests.toml b/exercises/practice/space-age/.meta/tests.toml
similarity index 100%
rename from exercises/space-age/.meta/tests.toml
rename to exercises/practice/space-age/.meta/tests.toml
diff --git a/exercises/space-age/README.md b/exercises/practice/space-age/README.md
similarity index 100%
rename from exercises/space-age/README.md
rename to exercises/practice/space-age/README.md
diff --git a/exercises/space-age/makefile b/exercises/practice/space-age/makefile
similarity index 100%
rename from exercises/space-age/makefile
rename to exercises/practice/space-age/makefile
diff --git a/exercises/space-age/src/example.c b/exercises/practice/space-age/src/example.c
similarity index 100%
rename from exercises/space-age/src/example.c
rename to exercises/practice/space-age/src/example.c
diff --git a/exercises/space-age/src/example.h b/exercises/practice/space-age/src/example.h
similarity index 100%
rename from exercises/space-age/src/example.h
rename to exercises/practice/space-age/src/example.h
diff --git a/exercises/space-age/src/space_age.c b/exercises/practice/space-age/src/space_age.c
similarity index 100%
rename from exercises/space-age/src/space_age.c
rename to exercises/practice/space-age/src/space_age.c
diff --git a/exercises/space-age/src/space_age.h b/exercises/practice/space-age/src/space_age.h
similarity index 100%
rename from exercises/space-age/src/space_age.h
rename to exercises/practice/space-age/src/space_age.h
diff --git a/exercises/space-age/test/test_space_age.c b/exercises/practice/space-age/test/test_space_age.c
similarity index 100%
rename from exercises/space-age/test/test_space_age.c
rename to exercises/practice/space-age/test/test_space_age.c
diff --git a/exercises/space-age/test/vendor/unity.c b/exercises/practice/space-age/test/vendor/unity.c
similarity index 100%
rename from exercises/space-age/test/vendor/unity.c
rename to exercises/practice/space-age/test/vendor/unity.c
diff --git a/exercises/space-age/test/vendor/unity.h b/exercises/practice/space-age/test/vendor/unity.h
similarity index 100%
rename from exercises/space-age/test/vendor/unity.h
rename to exercises/practice/space-age/test/vendor/unity.h
diff --git a/exercises/space-age/test/vendor/unity_internals.h b/exercises/practice/space-age/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/space-age/test/vendor/unity_internals.h
rename to exercises/practice/space-age/test/vendor/unity_internals.h
diff --git a/exercises/square-root/.meta/description.md b/exercises/practice/square-root/.meta/description.md
similarity index 100%
rename from exercises/square-root/.meta/description.md
rename to exercises/practice/square-root/.meta/description.md
diff --git a/exercises/square-root/README.md b/exercises/practice/square-root/README.md
similarity index 100%
rename from exercises/square-root/README.md
rename to exercises/practice/square-root/README.md
diff --git a/exercises/square-root/makefile b/exercises/practice/square-root/makefile
similarity index 100%
rename from exercises/square-root/makefile
rename to exercises/practice/square-root/makefile
diff --git a/exercises/square-root/src/example.c b/exercises/practice/square-root/src/example.c
similarity index 100%
rename from exercises/square-root/src/example.c
rename to exercises/practice/square-root/src/example.c
diff --git a/exercises/square-root/src/example.h b/exercises/practice/square-root/src/example.h
similarity index 100%
rename from exercises/square-root/src/example.h
rename to exercises/practice/square-root/src/example.h
diff --git a/exercises/square-root/src/square_root.c b/exercises/practice/square-root/src/square_root.c
similarity index 100%
rename from exercises/square-root/src/square_root.c
rename to exercises/practice/square-root/src/square_root.c
diff --git a/exercises/square-root/src/square_root.h b/exercises/practice/square-root/src/square_root.h
similarity index 100%
rename from exercises/square-root/src/square_root.h
rename to exercises/practice/square-root/src/square_root.h
diff --git a/exercises/square-root/test/test_square_root.c b/exercises/practice/square-root/test/test_square_root.c
similarity index 100%
rename from exercises/square-root/test/test_square_root.c
rename to exercises/practice/square-root/test/test_square_root.c
diff --git a/exercises/square-root/test/vendor/unity.c b/exercises/practice/square-root/test/vendor/unity.c
similarity index 100%
rename from exercises/square-root/test/vendor/unity.c
rename to exercises/practice/square-root/test/vendor/unity.c
diff --git a/exercises/square-root/test/vendor/unity.h b/exercises/practice/square-root/test/vendor/unity.h
similarity index 100%
rename from exercises/square-root/test/vendor/unity.h
rename to exercises/practice/square-root/test/vendor/unity.h
diff --git a/exercises/square-root/test/vendor/unity_internals.h b/exercises/practice/square-root/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/square-root/test/vendor/unity_internals.h
rename to exercises/practice/square-root/test/vendor/unity_internals.h
diff --git a/exercises/sublist/.meta/tests.toml b/exercises/practice/sublist/.meta/tests.toml
similarity index 100%
rename from exercises/sublist/.meta/tests.toml
rename to exercises/practice/sublist/.meta/tests.toml
diff --git a/exercises/sublist/README.md b/exercises/practice/sublist/README.md
similarity index 100%
rename from exercises/sublist/README.md
rename to exercises/practice/sublist/README.md
diff --git a/exercises/sublist/makefile b/exercises/practice/sublist/makefile
similarity index 100%
rename from exercises/sublist/makefile
rename to exercises/practice/sublist/makefile
diff --git a/exercises/sublist/src/example.c b/exercises/practice/sublist/src/example.c
similarity index 100%
rename from exercises/sublist/src/example.c
rename to exercises/practice/sublist/src/example.c
diff --git a/exercises/sublist/src/sublist.c b/exercises/practice/sublist/src/sublist.c
similarity index 100%
rename from exercises/sublist/src/sublist.c
rename to exercises/practice/sublist/src/sublist.c
diff --git a/exercises/sublist/src/sublist.h b/exercises/practice/sublist/src/sublist.h
similarity index 100%
rename from exercises/sublist/src/sublist.h
rename to exercises/practice/sublist/src/sublist.h
diff --git a/exercises/sublist/test/test_sublist.c b/exercises/practice/sublist/test/test_sublist.c
similarity index 100%
rename from exercises/sublist/test/test_sublist.c
rename to exercises/practice/sublist/test/test_sublist.c
diff --git a/exercises/sublist/test/vendor/unity.c b/exercises/practice/sublist/test/vendor/unity.c
similarity index 100%
rename from exercises/sublist/test/vendor/unity.c
rename to exercises/practice/sublist/test/vendor/unity.c
diff --git a/exercises/sublist/test/vendor/unity.h b/exercises/practice/sublist/test/vendor/unity.h
similarity index 100%
rename from exercises/sublist/test/vendor/unity.h
rename to exercises/practice/sublist/test/vendor/unity.h
diff --git a/exercises/sublist/test/vendor/unity_internals.h b/exercises/practice/sublist/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/sublist/test/vendor/unity_internals.h
rename to exercises/practice/sublist/test/vendor/unity_internals.h
diff --git a/exercises/sum-of-multiples/.meta/tests.toml b/exercises/practice/sum-of-multiples/.meta/tests.toml
similarity index 100%
rename from exercises/sum-of-multiples/.meta/tests.toml
rename to exercises/practice/sum-of-multiples/.meta/tests.toml
diff --git a/exercises/sum-of-multiples/README.md b/exercises/practice/sum-of-multiples/README.md
similarity index 100%
rename from exercises/sum-of-multiples/README.md
rename to exercises/practice/sum-of-multiples/README.md
diff --git a/exercises/sum-of-multiples/makefile b/exercises/practice/sum-of-multiples/makefile
similarity index 100%
rename from exercises/sum-of-multiples/makefile
rename to exercises/practice/sum-of-multiples/makefile
diff --git a/exercises/sum-of-multiples/src/example.c b/exercises/practice/sum-of-multiples/src/example.c
similarity index 100%
rename from exercises/sum-of-multiples/src/example.c
rename to exercises/practice/sum-of-multiples/src/example.c
diff --git a/exercises/sum-of-multiples/src/example.h b/exercises/practice/sum-of-multiples/src/example.h
similarity index 100%
rename from exercises/sum-of-multiples/src/example.h
rename to exercises/practice/sum-of-multiples/src/example.h
diff --git a/exercises/sum-of-multiples/src/sum_of_multiples.c b/exercises/practice/sum-of-multiples/src/sum_of_multiples.c
similarity index 100%
rename from exercises/sum-of-multiples/src/sum_of_multiples.c
rename to exercises/practice/sum-of-multiples/src/sum_of_multiples.c
diff --git a/exercises/sum-of-multiples/src/sum_of_multiples.h b/exercises/practice/sum-of-multiples/src/sum_of_multiples.h
similarity index 100%
rename from exercises/sum-of-multiples/src/sum_of_multiples.h
rename to exercises/practice/sum-of-multiples/src/sum_of_multiples.h
diff --git a/exercises/sum-of-multiples/test/test_sum_of_multiples.c b/exercises/practice/sum-of-multiples/test/test_sum_of_multiples.c
similarity index 100%
rename from exercises/sum-of-multiples/test/test_sum_of_multiples.c
rename to exercises/practice/sum-of-multiples/test/test_sum_of_multiples.c
diff --git a/exercises/sum-of-multiples/test/vendor/unity.c b/exercises/practice/sum-of-multiples/test/vendor/unity.c
similarity index 100%
rename from exercises/sum-of-multiples/test/vendor/unity.c
rename to exercises/practice/sum-of-multiples/test/vendor/unity.c
diff --git a/exercises/sum-of-multiples/test/vendor/unity.h b/exercises/practice/sum-of-multiples/test/vendor/unity.h
similarity index 100%
rename from exercises/sum-of-multiples/test/vendor/unity.h
rename to exercises/practice/sum-of-multiples/test/vendor/unity.h
diff --git a/exercises/sum-of-multiples/test/vendor/unity_internals.h b/exercises/practice/sum-of-multiples/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/sum-of-multiples/test/vendor/unity_internals.h
rename to exercises/practice/sum-of-multiples/test/vendor/unity_internals.h
diff --git a/exercises/triangle/.meta/tests.toml b/exercises/practice/triangle/.meta/tests.toml
similarity index 100%
rename from exercises/triangle/.meta/tests.toml
rename to exercises/practice/triangle/.meta/tests.toml
diff --git a/exercises/triangle/README.md b/exercises/practice/triangle/README.md
similarity index 100%
rename from exercises/triangle/README.md
rename to exercises/practice/triangle/README.md
diff --git a/exercises/triangle/makefile b/exercises/practice/triangle/makefile
similarity index 100%
rename from exercises/triangle/makefile
rename to exercises/practice/triangle/makefile
diff --git a/exercises/triangle/src/example.c b/exercises/practice/triangle/src/example.c
similarity index 100%
rename from exercises/triangle/src/example.c
rename to exercises/practice/triangle/src/example.c
diff --git a/exercises/triangle/src/example.h b/exercises/practice/triangle/src/example.h
similarity index 100%
rename from exercises/triangle/src/example.h
rename to exercises/practice/triangle/src/example.h
diff --git a/exercises/triangle/src/triangle.c b/exercises/practice/triangle/src/triangle.c
similarity index 100%
rename from exercises/triangle/src/triangle.c
rename to exercises/practice/triangle/src/triangle.c
diff --git a/exercises/triangle/src/triangle.h b/exercises/practice/triangle/src/triangle.h
similarity index 100%
rename from exercises/triangle/src/triangle.h
rename to exercises/practice/triangle/src/triangle.h
diff --git a/exercises/triangle/test/test_triangle.c b/exercises/practice/triangle/test/test_triangle.c
similarity index 100%
rename from exercises/triangle/test/test_triangle.c
rename to exercises/practice/triangle/test/test_triangle.c
diff --git a/exercises/triangle/test/vendor/unity.c b/exercises/practice/triangle/test/vendor/unity.c
similarity index 100%
rename from exercises/triangle/test/vendor/unity.c
rename to exercises/practice/triangle/test/vendor/unity.c
diff --git a/exercises/triangle/test/vendor/unity.h b/exercises/practice/triangle/test/vendor/unity.h
similarity index 100%
rename from exercises/triangle/test/vendor/unity.h
rename to exercises/practice/triangle/test/vendor/unity.h
diff --git a/exercises/triangle/test/vendor/unity_internals.h b/exercises/practice/triangle/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/triangle/test/vendor/unity_internals.h
rename to exercises/practice/triangle/test/vendor/unity_internals.h
diff --git a/exercises/two-bucket/.meta/tests.toml b/exercises/practice/two-bucket/.meta/tests.toml
similarity index 100%
rename from exercises/two-bucket/.meta/tests.toml
rename to exercises/practice/two-bucket/.meta/tests.toml
diff --git a/exercises/two-bucket/README.md b/exercises/practice/two-bucket/README.md
similarity index 100%
rename from exercises/two-bucket/README.md
rename to exercises/practice/two-bucket/README.md
diff --git a/exercises/two-bucket/makefile b/exercises/practice/two-bucket/makefile
similarity index 100%
rename from exercises/two-bucket/makefile
rename to exercises/practice/two-bucket/makefile
diff --git a/exercises/two-bucket/src/example.c b/exercises/practice/two-bucket/src/example.c
similarity index 100%
rename from exercises/two-bucket/src/example.c
rename to exercises/practice/two-bucket/src/example.c
diff --git a/exercises/two-bucket/src/example.h b/exercises/practice/two-bucket/src/example.h
similarity index 100%
rename from exercises/two-bucket/src/example.h
rename to exercises/practice/two-bucket/src/example.h
diff --git a/exercises/two-bucket/src/two_bucket.c b/exercises/practice/two-bucket/src/two_bucket.c
similarity index 100%
rename from exercises/two-bucket/src/two_bucket.c
rename to exercises/practice/two-bucket/src/two_bucket.c
diff --git a/exercises/two-bucket/src/two_bucket.h b/exercises/practice/two-bucket/src/two_bucket.h
similarity index 100%
rename from exercises/two-bucket/src/two_bucket.h
rename to exercises/practice/two-bucket/src/two_bucket.h
diff --git a/exercises/two-bucket/test/test_two_bucket.c b/exercises/practice/two-bucket/test/test_two_bucket.c
similarity index 100%
rename from exercises/two-bucket/test/test_two_bucket.c
rename to exercises/practice/two-bucket/test/test_two_bucket.c
diff --git a/exercises/two-bucket/test/vendor/unity.c b/exercises/practice/two-bucket/test/vendor/unity.c
similarity index 100%
rename from exercises/two-bucket/test/vendor/unity.c
rename to exercises/practice/two-bucket/test/vendor/unity.c
diff --git a/exercises/two-bucket/test/vendor/unity.h b/exercises/practice/two-bucket/test/vendor/unity.h
similarity index 100%
rename from exercises/two-bucket/test/vendor/unity.h
rename to exercises/practice/two-bucket/test/vendor/unity.h
diff --git a/exercises/two-bucket/test/vendor/unity_internals.h b/exercises/practice/two-bucket/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/two-bucket/test/vendor/unity_internals.h
rename to exercises/practice/two-bucket/test/vendor/unity_internals.h
diff --git a/exercises/two-fer/.meta/tests.toml b/exercises/practice/two-fer/.meta/tests.toml
similarity index 100%
rename from exercises/two-fer/.meta/tests.toml
rename to exercises/practice/two-fer/.meta/tests.toml
diff --git a/exercises/two-fer/README.md b/exercises/practice/two-fer/README.md
similarity index 100%
rename from exercises/two-fer/README.md
rename to exercises/practice/two-fer/README.md
diff --git a/exercises/two-fer/makefile b/exercises/practice/two-fer/makefile
similarity index 100%
rename from exercises/two-fer/makefile
rename to exercises/practice/two-fer/makefile
diff --git a/exercises/two-fer/src/example.c b/exercises/practice/two-fer/src/example.c
similarity index 100%
rename from exercises/two-fer/src/example.c
rename to exercises/practice/two-fer/src/example.c
diff --git a/exercises/two-fer/src/example.h b/exercises/practice/two-fer/src/example.h
similarity index 100%
rename from exercises/two-fer/src/example.h
rename to exercises/practice/two-fer/src/example.h
diff --git a/exercises/two-fer/src/two_fer.c b/exercises/practice/two-fer/src/two_fer.c
similarity index 100%
rename from exercises/two-fer/src/two_fer.c
rename to exercises/practice/two-fer/src/two_fer.c
diff --git a/exercises/two-fer/src/two_fer.h b/exercises/practice/two-fer/src/two_fer.h
similarity index 100%
rename from exercises/two-fer/src/two_fer.h
rename to exercises/practice/two-fer/src/two_fer.h
diff --git a/exercises/two-fer/test/test_two_fer.c b/exercises/practice/two-fer/test/test_two_fer.c
similarity index 100%
rename from exercises/two-fer/test/test_two_fer.c
rename to exercises/practice/two-fer/test/test_two_fer.c
diff --git a/exercises/two-fer/test/vendor/unity.c b/exercises/practice/two-fer/test/vendor/unity.c
similarity index 100%
rename from exercises/two-fer/test/vendor/unity.c
rename to exercises/practice/two-fer/test/vendor/unity.c
diff --git a/exercises/two-fer/test/vendor/unity.h b/exercises/practice/two-fer/test/vendor/unity.h
similarity index 100%
rename from exercises/two-fer/test/vendor/unity.h
rename to exercises/practice/two-fer/test/vendor/unity.h
diff --git a/exercises/two-fer/test/vendor/unity_internals.h b/exercises/practice/two-fer/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/two-fer/test/vendor/unity_internals.h
rename to exercises/practice/two-fer/test/vendor/unity_internals.h
diff --git a/exercises/word-count/.meta/hints.md b/exercises/practice/word-count/.meta/hints.md
similarity index 100%
rename from exercises/word-count/.meta/hints.md
rename to exercises/practice/word-count/.meta/hints.md
diff --git a/exercises/word-count/.meta/tests.toml b/exercises/practice/word-count/.meta/tests.toml
similarity index 100%
rename from exercises/word-count/.meta/tests.toml
rename to exercises/practice/word-count/.meta/tests.toml
diff --git a/exercises/word-count/README.md b/exercises/practice/word-count/README.md
similarity index 100%
rename from exercises/word-count/README.md
rename to exercises/practice/word-count/README.md
diff --git a/exercises/word-count/makefile b/exercises/practice/word-count/makefile
similarity index 100%
rename from exercises/word-count/makefile
rename to exercises/practice/word-count/makefile
diff --git a/exercises/word-count/src/example.c b/exercises/practice/word-count/src/example.c
similarity index 100%
rename from exercises/word-count/src/example.c
rename to exercises/practice/word-count/src/example.c
diff --git a/exercises/word-count/src/word_count.c b/exercises/practice/word-count/src/word_count.c
similarity index 100%
rename from exercises/word-count/src/word_count.c
rename to exercises/practice/word-count/src/word_count.c
diff --git a/exercises/word-count/src/word_count.h b/exercises/practice/word-count/src/word_count.h
similarity index 100%
rename from exercises/word-count/src/word_count.h
rename to exercises/practice/word-count/src/word_count.h
diff --git a/exercises/word-count/test/test_word_count.c b/exercises/practice/word-count/test/test_word_count.c
similarity index 100%
rename from exercises/word-count/test/test_word_count.c
rename to exercises/practice/word-count/test/test_word_count.c
diff --git a/exercises/word-count/test/vendor/unity.c b/exercises/practice/word-count/test/vendor/unity.c
similarity index 100%
rename from exercises/word-count/test/vendor/unity.c
rename to exercises/practice/word-count/test/vendor/unity.c
diff --git a/exercises/word-count/test/vendor/unity.h b/exercises/practice/word-count/test/vendor/unity.h
similarity index 100%
rename from exercises/word-count/test/vendor/unity.h
rename to exercises/practice/word-count/test/vendor/unity.h
diff --git a/exercises/word-count/test/vendor/unity_internals.h b/exercises/practice/word-count/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/word-count/test/vendor/unity_internals.h
rename to exercises/practice/word-count/test/vendor/unity_internals.h
diff --git a/exercises/wordy/.meta/tests.toml b/exercises/practice/wordy/.meta/tests.toml
similarity index 100%
rename from exercises/wordy/.meta/tests.toml
rename to exercises/practice/wordy/.meta/tests.toml
diff --git a/exercises/wordy/README.md b/exercises/practice/wordy/README.md
similarity index 100%
rename from exercises/wordy/README.md
rename to exercises/practice/wordy/README.md
diff --git a/exercises/wordy/makefile b/exercises/practice/wordy/makefile
similarity index 100%
rename from exercises/wordy/makefile
rename to exercises/practice/wordy/makefile
diff --git a/exercises/wordy/src/example.c b/exercises/practice/wordy/src/example.c
similarity index 100%
rename from exercises/wordy/src/example.c
rename to exercises/practice/wordy/src/example.c
diff --git a/exercises/wordy/src/example.h b/exercises/practice/wordy/src/example.h
similarity index 100%
rename from exercises/wordy/src/example.h
rename to exercises/practice/wordy/src/example.h
diff --git a/exercises/wordy/src/wordy.c b/exercises/practice/wordy/src/wordy.c
similarity index 100%
rename from exercises/wordy/src/wordy.c
rename to exercises/practice/wordy/src/wordy.c
diff --git a/exercises/wordy/src/wordy.h b/exercises/practice/wordy/src/wordy.h
similarity index 100%
rename from exercises/wordy/src/wordy.h
rename to exercises/practice/wordy/src/wordy.h
diff --git a/exercises/wordy/test/test_wordy.c b/exercises/practice/wordy/test/test_wordy.c
similarity index 100%
rename from exercises/wordy/test/test_wordy.c
rename to exercises/practice/wordy/test/test_wordy.c
diff --git a/exercises/wordy/test/vendor/unity.c b/exercises/practice/wordy/test/vendor/unity.c
similarity index 100%
rename from exercises/wordy/test/vendor/unity.c
rename to exercises/practice/wordy/test/vendor/unity.c
diff --git a/exercises/wordy/test/vendor/unity.h b/exercises/practice/wordy/test/vendor/unity.h
similarity index 100%
rename from exercises/wordy/test/vendor/unity.h
rename to exercises/practice/wordy/test/vendor/unity.h
diff --git a/exercises/wordy/test/vendor/unity_internals.h b/exercises/practice/wordy/test/vendor/unity_internals.h
similarity index 100%
rename from exercises/wordy/test/vendor/unity_internals.h
rename to exercises/practice/wordy/test/vendor/unity_internals.h
diff --git a/reference/exercise-concepts/binary-search.md b/reference/exercise-concepts/binary-search.md
new file mode 100644
index 000000000..fc65081e0
--- /dev/null
+++ b/reference/exercise-concepts/binary-search.md
@@ -0,0 +1,17 @@
+# Concepts of binary-search
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/binary-search/src/example.c)
+
+- [Arithmetic](https://github.com/exercism/v3/blob/master/reference/concepts/arithmetic.md): Used to calculate the limits between which to search the value
+- [Comparisons](https://github.com/exercism/v3/blob/master/reference/concepts/comparisons.md): Comparisons are used in if and while loop conditions
+- [Function definitions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Definitions): Used as the main entry point for the exercise
+- [Function parameters](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Parameters): The definition of the function under test uses the parameters `value`, `arr` and `length`
+- [Header files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): Used to access the standard library for `size_t`, an unsigned integral type
+- [Integer](https://github.com/exercism/v3/blob/master/reference/types/integer.md): Integers are used throughout
+- [Operators](https://github.com/exercism/v3/blob/master/reference/concepts/operators.md): Operators are used throughout for the arithmetic
+- [The if statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-if-Statement): If statements are used to decide in which part of the array to search for the index to return
+- [The return statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-return-Statement): The index of the searched value is returned if the value is found, `NULL` otherwise
+- [The while statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-while-Statement): Loop to find the searched value
+- [Variables](https://github.com/exercism/v3/blob/master/reference/concepts/variables.md): Used to create the limits of the search interval
+- [Pointers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Pointers): The parameter `arr` to the function under test is an int passed by pointer
+- [Nullability](https://github.com/exercism/v3/blob/265953042ed67f5404f498656c2c23bdce708af5/reference/types/null.md): `NULL` is returned if the searched value was not found
diff --git a/reference/exercise-concepts/difference-of-squares.md b/reference/exercise-concepts/difference-of-squares.md
new file mode 100644
index 000000000..defc14186
--- /dev/null
+++ b/reference/exercise-concepts/difference-of-squares.md
@@ -0,0 +1,22 @@
+# Concepts of difference-of-squares
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/difference-of-squares/src/example.c)
+
+- [Arithmetic](https://github.com/exercism/v3/blob/master/reference/concepts/arithmetic.md): Several simple calculations are used
+- [Calling functions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Calling-Functions): The `difference_of_squares()` function can call other required functions to prevent code duplication
+- [Comparisons](https://github.com/exercism/v3/blob/master/reference/concepts/comparisons.md): Used to decide on the calculations required
+- [Function definitions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Definitions): Used as the main entry point for the exercise
+- [Function parameters](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Parameters): The definition of the functions under test uses parameters
+- [Header files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): Header files are included
+- [Integer types](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Integer-Types): Integers are used throughout
+- [Operators](https://github.com/exercism/v3/blob/master/reference/concepts/operators.md): Used to calculate the sums, squares and difference
+- [Scope](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Scope): Summing variables are used outside of loop scopes to allow further use of the value
+- [Signedness](https://github.com/exercism/v3/blob/master/reference/concepts/signedness.md): Parameters and return values of the functions under test are unsigned
+- [The for statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-for-Statement): A for loop is used to calculate the square of a sum
+- Underflow: Some implementations could result in underflow
+  - [Arithmetic underflow](https://en.wikipedia.org/wiki/Arithmetic_underflow)
+  - [Impacts of underflow](https://www.gnu.org/software/libc/manual/html_node/Math-Error-Reporting.html)
+- Overflow: Some implementations could result in overflow
+  - [Integer underflow](https://en.wikipedia.org/wiki/Integer_overflow)
+  - [Impacts of underflow](https://www.gnu.org/software/libc/manual/html_node/Math-Error-Reporting.html)
+- [Variables](https://github.com/exercism/v3/blob/master/reference/concepts/variables.md): variables are used for summing values
diff --git a/reference/exercise-concepts/hamming.md b/reference/exercise-concepts/hamming.md
new file mode 100644
index 000000000..35e1dc78f
--- /dev/null
+++ b/reference/exercise-concepts/hamming.md
@@ -0,0 +1,16 @@
+# Concepts of hamming
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/hamming/src/example.c)
+
+- [Array](https://github.com/exercism/v3/blob/master/reference/types/array.md): The string arguments are iterated over as arrays
+- [Comparisons](https://github.com/exercism/v3/blob/master/reference/concepts/comparisons.md): String lengths and character values are compared
+- [Header files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): Header files are included
+- [Operators](https://github.com/exercism/v3/blob/master/reference/concepts/operators.md): Used to decide on and implement changes to the output value
+- [Pointers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Pointers): The parameters to the function under test are strings (passed by pointer)
+- [Storage Class Specifiers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Storage-Class-Specifiers): The parameters to the function under test are `const`
+- [String](https://github.com/exercism/v3/blob/master/reference/types/string.md): The parameters to the function under test are strings (passed by pointer)
+- [Strings library](https://en.cppreference.com/w/c/string): The function `strlen()` from the strings library is used
+- [The for statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-for-Statement): A for statement is used to iterate across the strings as arrays
+- [The if Statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-if-Statement): If statements are used to decide on the change required for the output value
+- [The increment operator](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Incrementing-and-Decrementing): Used to implement changes to the output value
+- [The return statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-return-Statement): The calculated value is returned
diff --git a/reference/exercise-concepts/isogram.md b/reference/exercise-concepts/isogram.md
new file mode 100644
index 000000000..addc9c477
--- /dev/null
+++ b/reference/exercise-concepts/isogram.md
@@ -0,0 +1,23 @@
+# Concepts of isogram
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/isogram/src/example.c)
+
+- [Array](https://github.com/exercism/v3/blob/master/reference/types/array.md): The `phrase` string is iterated over using array semantics
+- [ASCII](https://github.com/exercism/v3/blob/master/reference/concepts/ascii.md): ASCII arithmetic is used
+- [Bitwise manipulation](https://github.com/exercism/v3/blob/master/reference/concepts/bitwise_manipulation.md): A bit mask is constructed and applied
+- [Boolean](https://github.com/exercism/v3/blob/master/reference/types/boolean.md): The returned value is of type `bool`
+- [Boolean logic](https://github.com/exercism/v3/blob/master/reference/concepts/boolean_logic.md): A bit mask is applied
+- [Calling functions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Calling-Functions): Standard library functions are called
+- [Case Conversion](https://www.gnu.org/software/libc/manual/html_node/Case-Conversion.html): Characters are normalised to upper case
+- [Character classification](https://www.gnu.org/software/libc/manual/html_node/Classification-of-Characters.html): Branching condition tests if a character is alphanumeric
+- [Comparisons](https://github.com/exercism/v3/blob/master/reference/concepts/comparisons.md): Tests for `NULL` and `'\0'` are used to understand the string argument
+- [Fixed width integer Types](https://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types): Fixed width integers are used throughout
+- [Function definitions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Definitions): A function is defined to implement the exercise
+- [Function Parameters](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Parameters): The definition of the function under test uses parameters
+- [Header Files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): Used to access the standard library
+- [Loops](https://github.com/exercism/v3/blob/master/reference/concepts/loops.md): A for loop is used to iterate across the string's characters
+- [NULL pointer constant](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Null-Pointer-Constant): Pointer argument is NULL checked to ensure validity
+- [Operators](https://github.com/exercism/v3/blob/master/reference/concepts/operators.md): Used to decide on and implement changes to the output value
+- [Unsigned number representation](https://github.com/exercism/v3/blob/master/reference/types/unsigned.md): Unsigned integers are used to alow correct bit manipulation
+- [String](https://github.com/exercism/v3/blob/master/reference/types/string.md): A string parameter is part of the function under test's definition
+- [The if Statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-if-Statement): Used to determine the value to return
diff --git a/reference/exercise-concepts/resistor-color.md b/reference/exercise-concepts/resistor-color.md
new file mode 100644
index 000000000..6865ab852
--- /dev/null
+++ b/reference/exercise-concepts/resistor-color.md
@@ -0,0 +1,17 @@
+# Concepts of resistor-color
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/resistor-color/src/example.c)
+
+- [Array](https://github.com/exercism/v3/blob/master/reference/types/array.md): The `colors()` function returns an array (by pointer)
+- [Enumerations](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Enumerations): Each band color is specified by an enum value
+- [Fixed width integer Types](https://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types): Fixed width integers are used throughout
+- [Function definitions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Definitions): Functions are defined to fulfil the requirements
+- [Function parameters](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Parameters): The definition of the function under test uses parameters
+- [Header files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): Used to access the standard library
+- [Pointers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Pointers): The `colors()` function returns an array by pointer
+- [Renaming types](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Renaming-Types): The enum for band colors is named using `typefdef`
+- [Storage class specifiers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Storage-Class-Specifiers): A `static` array is defined
+- [The return statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-return-Statement): The implemented functions return a value
+- [Type casting (type conversion, type coercion)](https://github.com/exercism/v3/blob/master/reference/concepts/type_casting.md): A band color enum value is converted to an integer to present its numerical value.
+- [Typedef statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-typedef-Statement): The enum for band colors is named using `typefdef`
+- [Void type](https://en.wikipedia.org/wiki/Void_type): The `void` type is used in a function definition
diff --git a/reference/exercise-concepts/square-root.md b/reference/exercise-concepts/square-root.md
new file mode 100644
index 000000000..c469547dc
--- /dev/null
+++ b/reference/exercise-concepts/square-root.md
@@ -0,0 +1,18 @@
+# Concepts of square-root
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/square-root/src/example.c)
+
+- [Arithmetic](https://github.com/exercism/v3/blob/master/reference/concepts/arithmetic.md): Used to calculate the root
+- [Bitwise manipulation](https://github.com/exercism/v3/blob/master/reference/concepts/bitwise_manipulation.md): Bit-shifting is used several times for calculation of the output value
+- [Comparisons](https://github.com/exercism/v3/blob/master/reference/concepts/comparisons.md): Comparisons are used in while loop conditions
+- [Fixed width integer types](https://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types): Used throughout for specific bit positioning
+- [Function definitions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Definitions): Used as the main entry point for the exercise
+- [Function parameters](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Parameters): The definition of the function under test uses a parameter `radicand`
+- [Header files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): Used to access the standard library for fixed width integers
+- [Integer](https://github.com/exercism/v3/blob/master/reference/types/integer.md): Integers are used throughout
+- [Operators](https://github.com/exercism/v3/blob/master/reference/concepts/operators.md): Operators are used throughout for the arithmetic
+- [The if statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-if-Statement): Decide if the bit mask approximation is in range
+- [The return statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-return-Statement): The calculated value is returned from the function
+- [The while statement](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#The-while-Statement): Loop to create bit mask approximation
+- [Unsigned number representation](https://github.com/exercism/v3/blob/master/reference/types/unsigned.md): Required to correctly bit shift input and output values
+- [Variables](https://github.com/exercism/v3/blob/master/reference/concepts/variables.md): Used to create the bit mask
diff --git a/reference/exercise-concepts/two-fer.md b/reference/exercise-concepts/two-fer.md
new file mode 100644
index 000000000..76013a9d0
--- /dev/null
+++ b/reference/exercise-concepts/two-fer.md
@@ -0,0 +1,16 @@
+# Concepts of two-fer
+
+[Example Implementation](https://github.com/exercism/c/blob/master/exercises/two-fer/src/example.c)
+
+- [Header Files](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Header-Files): used to access the standard library
+- [Function Definitions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Definitions): used as the main entry point for the exercise
+- [Function Parameters](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Function-Parameters): the definition of the function under test uses parameters
+- Void Type: void is used as a return value
+- [Integer Types](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Integer-Types): buffer and name are integer types
+- [Pointers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Pointers): buffer and name are pointers
+- [Type Qualifiers](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Type-Qualifiers): name is const
+- [Calling Functions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Calling-Functions): the sprintf function is called
+- [String Formatting](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Other-Output-Conversions): string formatting is used in the call to sprintf
+- [Constants](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#String-Constants): "One for %s, one for me." is a string constant
+- [NULL](https://www.gnu.org/software/libc/manual/html_mono/libc.html#Null-Pointer-Constant): NULL is used for an optional argument
+- [Conditional Expressions](https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Conditional-Expressions): name ? name : "you" is a conditional expression
diff --git a/reference/implementing-a-concept-exercise.md b/reference/implementing-a-concept-exercise.md
new file mode 100644
index 000000000..d3e53982a
--- /dev/null
+++ b/reference/implementing-a-concept-exercise.md
@@ -0,0 +1,83 @@
+# How to Implement a C Concept Exercise
+
+This document describes how to implement a concept exercise for the C track.
+
+**Please please please read the docs before starting.** Posting PRs without reading these docs will be a lot more frustrating for you during the review cycle, and exhaust Exercism's maintainers' time. So, before diving into the implementation, please read the following documents:
+
+- [The features of v3][docs-features-of-v3].
+- [Rationale for v3][docs-rationale-for-v3].
+- [What are concept exercise and how they are structured?][docs-concept-exercises]
+
+Please also watch the following video:
+
+- [The Anatomy of a Concept Exercise][anatomy-of-a-concept-exercise].
+
+As this document is generic, the following placeholders are used:
+
+- `<SLUG>`: the slug of the exercise in kebab-case (e.g. `calculator-conundrum`).
+- `<NAME>`: the name of the exercise in snake_case (e.g. `calculator_conundrum`).
+- `<CONCEPT_SLUG>`: the slug of one of the exercise's concepts in kebab-case (e.g. `anonymous-methods`).
+
+Before implementing the exercise, please make sure you have a good understanding of what the exercise should be teaching (and what not). This information can be found in the exercise's GitHub issue.
+
+To implement a concept exercise, the following files must be added:
+
+<pre>
+languages
+└── c
+    ├── concepts
+    |   └── &lt;CONCEPT_SLUG&gt;
+    |       ├── about.md
+    |       └── links.json
+    └── exercises
+        └── concept
+            └── &lt;SLUG&gt;
+                ├── .docs
+                │   ├── instructions.md
+                │   ├── introduction.md
+                │   ├── hints.md
+                │   └── source.md (required if there are third-party sources)
+                ├── .meta
+                │   ├── config.json
+                │   ├── design.md
+                │   └── exemplar.c
+                ├── makefile
+                ├── &lt;NAME&gt;.c
+                ├── &lt;NAME&gt;.h
+                ├── test_&lt;NAME&gt;.c
+                └── test-framework
+</pre>
+
+## Step 1: Add code files
+
+The code files are track-specific and should be designed to help the student learn the exercise's concepts. The following files must be added (not necessarily in this order):
+
+- `makefile`: the makefile for the stub files and tests
+- `<NAME>{.c|.h}`: the stub source and header implementation files, which are the starting point for students to work on the exercise.
+- `test_<NAME>.c`: the unit test source file.
+- `test-framework`: this directory contains the source files of unit test framework, [Unity][unity]
+- `.meta/exemplar{.c|.h}`: an exemplar implementation that passes all the unit tests.
+
+## Step 2: Add documentation files
+
+How to create the files common to all tracks is described in the [how to implement a concept exercise document][how-to-implement-a-concept-exercise].
+
+## Step 3: Update list of implemented exercises
+
+- Add the exercise to the [list of implemented exercises][implemented-exercises].
+
+## Inspiration
+
+When implementing an exercise, it can be very useful to look at already implemented C exercises. You can also check the exercise's [general concepts documents][reference] to see if other languages have already implemented an exercise for that concept.
+
+## Help
+
+If you have any questions regarding implementing the exercise, please post them as comments in the exercise's GitHub issue.
+
+[docs-concept-exercises]: https://github.com/exercism/v3/blob/main/docs/concept-exercises.md
+[docs-rationale-for-v3]: https://github.com/exercism/v3/blob/main/docs/rationale-for-v3.md
+[docs-features-of-v3]: https://github.com/exercism/v3/blob/main/docs/features-of-v3.md
+[anatomy-of-a-concept-exercise]: https://www.youtube.com/watch?v=gkbBqd7hPrA
+[unity]: http://www.throwtheswitch.org/unity
+[how-to-implement-a-concept-exercise]: https://github.com/exercism/v3/blob/main/docs/maintainers/generic-how-to-implement-a-concept-exercise.md
+[reference]: https://github.com/exercism/v3/blob/main/reference