diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 3fb97ad..0dbceba 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -46,6 +46,7 @@ jobs:
         uses: actions-rs/clippy-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-targets --all-features -- -D warnings
   doc:
     runs-on: ubuntu-latest
     name: nightly / doc
@@ -58,7 +59,7 @@ jobs:
       - name: cargo doc
         run: cargo doc --no-deps --all-features
         env:
-          RUSTDOCFLAGS: --cfg docsrs
+          RUSTDOCFLAGS: --cfg docsrs -D warnings
   hack:
     runs-on: ubuntu-latest
     name: ubuntu / stable / features
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b9a8868..80c5e6f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,6 +33,23 @@ jobs:
       # https://github.com/rust-lang/cargo/issues/6669
       - name: cargo test --doc
         run: cargo test --locked --all-features --doc
+  minimal:
+    runs-on: ubuntu-latest
+    name: ubuntu / stable / minimal-versions
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - name: Install stable
+        uses: dtolnay/rust-toolchain@stable
+      - name: Install nightly for -Zminimal-versions
+        uses: dtolnay/rust-toolchain@nightly
+      - name: rustup default stable
+        run: rustup default stable
+      - name: cargo update -Zminimal-versions
+        run: cargo +nightly update -Zminimal-versions
+      - name: cargo test
+        run: cargo test --locked --all-features --all-targets
   os-check:
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }} / stable
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d6b4801..8a17f5a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -10,13 +10,13 @@ repos:
       - id: check-added-large-files
       - id: check-merge-conflict
   - repo: https://github.com/joshuachp/pre-commit-hooks
-    rev: 0.1.24
+    rev: 0.1.29
     hooks:
       - id: rust-fmt
-      - id: rust-build
       - id: rust-clippy
+      - id: rust-build
       - id: rust-test
-      - id: rust-test-doc
+      - id: rust-doc
       - id: rust-hack
       - id: nix-nixpkgs-fmt
       - id: nix-flake-check
diff --git a/Cargo.lock b/Cargo.lock
index 445cccb..569ac3a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,399 +2,35 @@
 # It is not intended for manual editing.
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+checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
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@@ -416,119 +52,29 @@ dependencies = [
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 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46266871c240a00b8f503b877622fe33430b3c7d963bdc0f2adc511e54a1eae3"
+checksum = "693151e1ac27563d6dbcec9dee9fbd5da8539b20fa14ad3752b2e6d363ace360"
 dependencies = [
  "itoa",
  "ryu",
  "serde",
 ]
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.23"
@@ -557,17 +103,7 @@ checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
-]
-
-[[package]]
-name = "tinytemplate"
-version = "1.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be4d6b5f19ff7664e8c98d03e2139cb510db9b0a60b55f8e8709b689d939b6bc"
-dependencies = [
- "serde",
- "serde_json",
+ "syn",
 ]
 
 [[package]]
@@ -576,177 +112,6 @@ version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"
 
-[[package]]
-name = "walkdir"
-version = "2.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36df944cda56c7d8d8b7496af378e6b16de9284591917d307c9b4d313c44e698"
-dependencies = [
- "same-file",
- "winapi-util",
-]
-
-[[package]]
-name = "wasm-bindgen"
-version = "0.2.87"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7706a72ab36d8cb1f80ffbf0e071533974a60d0a308d01a5d0375bf60499a342"
-dependencies = [
- "cfg-if",
- "wasm-bindgen-macro",
-]
-
-[[package]]
-name = "wasm-bindgen-backend"
-version = "0.2.87"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ef2b6d3c510e9625e5fe6f509ab07d66a760f0885d858736483c32ed7809abd"
-dependencies = [
- "bumpalo",
- "log",
- "once_cell",
- "proc-macro2",
- "quote",
- "syn 2.0.23",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-macro"
-version = "0.2.87"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dee495e55982a3bd48105a7b947fd2a9b4a8ae3010041b9e0faab3f9cd028f1d"
-dependencies = [
- "quote",
- "wasm-bindgen-macro-support",
-]
-
-[[package]]
-name = "wasm-bindgen-macro-support"
-version = "0.2.87"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.23",
- "wasm-bindgen-backend",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-shared"
-version = "0.2.87"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
-
-[[package]]
-name = "web-sys"
-version = "0.3.63"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bdd9ef4e984da1187bf8110c5cf5b845fbc87a23602cdf912386a76fcd3a7c2"
-dependencies = [
- "js-sys",
- "wasm-bindgen",
-]
-
-[[package]]
-name = "winapi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
-dependencies = [
- "winapi-i686-pc-windows-gnu",
- "winapi-x86_64-pc-windows-gnu",
-]
-
-[[package]]
-name = "winapi-i686-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-
-[[package]]
-name = "winapi-util"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
-dependencies = [
- "winapi",
-]
-
-[[package]]
-name = "winapi-x86_64-pc-windows-gnu"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
-name = "windows-sys"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
-dependencies = [
- "windows-targets",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.48.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
-dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
-
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
-
-[[package]]
-name = "windows_i686_gnu"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
-
-[[package]]
-name = "windows_i686_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
-
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
-
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
-
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
-
 [[package]]
 name = "yansi"
 version = "0.5.1"
diff --git a/Cargo.toml b/Cargo.toml
index c83ad22..890dbcc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,24 +7,19 @@ keywords = ["data-structures", "trees"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/joshuachp/forest-ds"
 description = "Implementation of a secure tree structure."
+rust-version = "1.56.1"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [lib]
-bench = false
 
 [dependencies]
-serde = { version = "1.0.164", optional = true }
-thiserror = "1.0.40"
+serde = { version = "1", optional = true }
+thiserror = "1"
 
 [dev-dependencies]
-criterion = "0.5.1"
-pretty_assertions = "1.3.0"
-serde_json = "1.0.99"
-
-[[bench]]
-name = "tree_benchmark"
-harness = false
+pretty_assertions = "1.4.0"
+serde_json = "1.0.105"
 
 [[example]]
 name = "serialize"
diff --git a/README.md b/README.md
index 1c582b8..2466ac5 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![Crates.io](https://img.shields.io/crates/v/forest-ds)](https://crates.io/crates/forest-ds)
 [![docs.rs](https://img.shields.io/docsrs/forest-ds)](https://docs.rs/forest-ds/)
+[![check](https://github.com/joshuachp/forest-ds/actions/workflows/check.yml/badge.svg)](https://github.com/joshuachp/forest-ds/blob/main/.github/workflows/check.yml)
 [![test](https://github.com/joshuachp/forest-ds/actions/workflows/test.yml/badge.svg)](https://github.com/joshuachp/forest-ds/blob/main/.github/workflows/test.yml)
 [![codecov](https://codecov.io/gh/joshuachp/forest-ds/branch/main/graph/badge.svg?token=KYDH1J83U9)](https://codecov.io/gh/joshuachp/forest-ds)
 
diff --git a/benches/tree_benchmark.rs b/benches/tree_benchmark.rs
deleted file mode 100644
index 4b40b05..0000000
--- a/benches/tree_benchmark.rs
+++ /dev/null
@@ -1,94 +0,0 @@
-use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
-use forest_ds::tree::Tree;
-
-fn criterion_benchmark(c: &mut Criterion) {
-    let size: usize = 1_000_000;
-
-    c.bench_with_input(BenchmarkId::new("append_child", size), &size, |b, &s| {
-        b.iter(|| {
-            let mut tree = Tree::with_capacity(s);
-            (0..s).for_each(|i| {
-                tree.append_child(i);
-            });
-        });
-    });
-
-    c.bench_with_input(BenchmarkId::new("append_sibling", size), &size, |b, &s| {
-        b.iter(|| {
-            let mut tree = Tree::with_capacity(s);
-            (0..s).for_each(|i| {
-                tree.append_sibling(i);
-            });
-        });
-    });
-
-    let mut tree = Tree::with_capacity(size);
-    (0..size).for_each(|i| {
-        tree.append_child(i);
-    });
-
-    c.bench_with_input(BenchmarkId::new("iterate_child", size), &tree, |b, t| {
-        b.iter(|| {
-            let mut sum = 0;
-            for v in t.iter() {
-                sum += *v;
-            }
-            sum
-        });
-    });
-
-    let mut tree = Tree::with_capacity(size * 2);
-    (0..size).for_each(|i| {
-        tree.append_child(i);
-        tree.append_sibling(i);
-    });
-
-    c.bench_with_input(BenchmarkId::new("iterate_mixed", size), &tree, |b, t| {
-        b.iter(|| {
-            let mut sum = 0;
-            for v in t.iter() {
-                sum += *v;
-            }
-            sum
-        });
-    });
-
-    c.bench_with_input(BenchmarkId::new("iterate_mut", size), &size, move |b, s| {
-        b.iter(|| {
-            let size = *s;
-            let mut tree = Tree::with_capacity(size);
-            (0..size).for_each(|i| {
-                tree.append_child(i);
-            });
-
-            for v in tree.iter_mut() {
-                *v += 1;
-            }
-        });
-    });
-
-    c.bench_with_input(
-        BenchmarkId::new("iterate_into_iter", size),
-        &size,
-        move |b, s| {
-            b.iter(|| {
-                let size = *s;
-                let mut tree = Tree::with_capacity(size);
-                (0..size).for_each(|i| {
-                    tree.append_child(i);
-                });
-
-                let mut sum = 0;
-                for mut v in tree.into_iterator() {
-                    v += 1;
-                    sum += v;
-                }
-
-                sum
-            });
-        },
-    );
-}
-
-criterion_group!(benches, criterion_benchmark);
-criterion_main!(benches);
diff --git a/flake.lock b/flake.lock
index d887ecd..9579f3e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -8,11 +8,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1688278950,
-        "narHash": "sha256-h3J/w3/hCeW6D+VsN/JBQ0Buz76g5wRFznUJF8JomT4=",
+        "lastModified": 1692598848,
+        "narHash": "sha256-LYQNc486Em/UGU/LCzbcafNY6kOdl1mP6FcnWdudFKo=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "8e75b5c8506960b49fbc5618717d966d04ee0a7d",
+        "rev": "224c5c301ab5f96afe51ec4dfa661fa82ab4ad05",
         "type": "github"
       },
       "original": {
@@ -26,11 +26,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1687709756,
-        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
         "type": "github"
       },
       "original": {
@@ -46,11 +46,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1688229166,
-        "narHash": "sha256-9lGDg8K1ASjTThzYjctdgd35WqocIIeakQXs5tAbQsM=",
+        "lastModified": 1692351612,
+        "narHash": "sha256-KTGonidcdaLadRnv9KFgwSMh1ZbXoR/OBmPjeNMhFwU=",
         "owner": "nmattia",
         "repo": "naersk",
-        "rev": "714e701eb4ca2491d34d794b98be4b994a796ae7",
+        "rev": "78789c30d64dea2396c9da516bbcc8db3a475207",
         "type": "github"
       },
       "original": {
@@ -62,11 +62,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1688221086,
-        "narHash": "sha256-cdW6qUL71cNWhHCpMPOJjlw0wzSRP0pVlRn2vqX/VVg=",
+        "lastModified": 1692494774,
+        "narHash": "sha256-noGVoOTyZ2Kr5OFglzKYOX48cx3hggdCPbXrYMG2FDw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cd99c2b3c9f160cd004318e0697f90bbd5960825",
+        "rev": "3476a10478587dec90acb14ec6bde0966c545cc0",
         "type": "github"
       },
       "original": {
@@ -87,11 +87,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1688245988,
-        "narHash": "sha256-0DlDUvMFCaFGHnxwyG68RJbKsJ8EM7xu3FiWb2Ry8+E=",
+        "lastModified": 1692456871,
+        "narHash": "sha256-ribQkxEbMMb8vcBMKvcrPHFftMmlaF3HIAbJty9fDeY=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "f5f0c48ac37fb19705af2864cb50dd6d82e9134e",
+        "rev": "83b3ba1b8191c065bb0dacc79e5896f7f21e4611",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 4ab492c..4799741 100644
--- a/flake.nix
+++ b/flake.nix
@@ -39,15 +39,7 @@
         default = packages.forest-ds;
       };
       devShells = {
-        default = pkgs.mkShell {
-          inputsFrom = [
-            packages.forest-ds
-          ];
-          packages = with pkgs; [
-            pre-commit
-          ];
-        };
-        nightly =
+        default =
           let
             toolchain = (fenix.packages.${system}.latest);
           in