diff --git a/leptos/flake.nix b/leptos/flake.nix
index eb9967a..1a026c1 100644
--- a/leptos/flake.nix
+++ b/leptos/flake.nix
@@ -4,6 +4,19 @@
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
     rust-overlay.url = "github:oxalica/rust-overlay";
     systems.url = "github:nix-systems/x86_64-linux";
+    my-drvs.url = "github:huuff/nix-derivations";
+    treefmt = {
+      url = "github:numtide/treefmt-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    nix-checks = {
+      url = "github:huuff/nix-checks";
+      inputs.my-derivations.follows = "my-drvs";
+    };
+    pre-commit = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
     utils = {
       url = "github:numtide/flake-utils";
       inputs.systems.follows = "systems";
@@ -16,59 +29,64 @@
       nixpkgs,
       utils,
       rust-overlay,
+      my-drvs,
+      treefmt,
+      pre-commit,
+      nix-checks,
     }:
     utils.lib.eachDefaultSystem (
       system:
       let
         overlays = [
           (import rust-overlay)
-          (_: _: {
-            leptosfmt = self.rustPlatform.buildRustPackage rec {
-              pname = "leptosfmt";
-              version = "0.1.30";
-
-              src = self.fetchCrate {
-                inherit version;
-                crateName = pname;
-                hash = "sha256-BSWU4KjEfbs8iDkCq+n2D34WS9kqKCVePKnghgQQb/0=";
-              };
-
-              cargoHash = "sha256-ZhzcrjVLdR7V6ylmZrQJAFFOL6hSuiORA3iNQdSXEzA=";
-
-              meta = {
-                description = "A formatter for the leptos view! macro";
-                mainProgram = "leptosfmt";
-                homepage = "https://github.com/bram209/leptosfmt";
-                changelog = "https://github.com/bram209/leptosfmt/blob/${version}/CHANGELOG.md";
-                license = with self.lib.licenses; [
-                  asl20
-                  mit
-                ];
-              };
-            };
-          })
         ];
         pkgs = import nixpkgs { inherit system overlays; };
+        rustPkgs = pkgs.rust-bin.stable.latest.default.override {
+          targets = [
+            "x86_64-unknown-linux-musl"
+            "wasm32-unknown-unknown"
+          ];
+        };
+        myPkgs = my-drvs.packages.${system};
+        treefmt-build =
+          (treefmt.lib.evalModule pkgs (import ./treefmt.nix { inherit (myPkgs) leptosfmt; })).config.build;
+        pre-commit-check = pre-commit.lib.${system}.run {
+          src = ./.;
+          hooks = import ./pre-commit.nix {
+            inherit pkgs rustPkgs;
+            treefmt = treefmt-build.wrapper;
+          };
+        };
+        inherit (nix-checks.lib.${system}) checks;
       in
       {
-        devShell =
+        checks = {
+          formatting = treefmt-build.check self;
+          statix = checks.statis ./.;
+          deadnix = checks.deadnix ./.;
+          flake-checker = checks.flake-checker ./.;
+          clippy = checks.clippy ./.;
+        };
+
+        devShell.default =
           with pkgs;
           mkShell {
+            inherit (pre-commit-check) shellHook;
             buildInputs = [
-              (rust-bin.stable.latest.default.override {
-                targets = [
-                  "x86_64-unknown-linux-musl"
-                  "wasm32-unknown-unknown"
-                ];
-              })
+              # nix
+              nil
+              nixfmt-rfc-style
+
+              rustPkgs
               rust-analyzer
 
               cargo-leptos
+              cargo-expand # expand macros
               cargo-generate # required for cargo-leptos
               dart-sass
               binaryen # required for release compilation
-              leptosfmt
-              stylance-cli
+              my-drvs.leptosfmt
+              stylance-cli # bundle sass
             ];
           };
       }
diff --git a/leptos/pre-commit.nix b/leptos/pre-commit.nix
new file mode 100644
index 0000000..0e505cc
--- /dev/null
+++ b/leptos/pre-commit.nix
@@ -0,0 +1,46 @@
+{
+  pkgs,
+  treefmt,
+  rustPkgs,
+}:
+
+{
+  check-merge-conflicts.enable = true;
+  check-added-large-files.enable = true;
+  commitizen.enable = true;
+
+  gitleaks = {
+    name = "gitleaks";
+    enable = true;
+    entry = "${pkgs.gitleaks}/bin/gitleaks detect";
+    stages = [ "pre-commit" ];
+  };
+
+  treefmt = {
+    enable = true;
+    packageOverrides.treefmt = treefmt;
+  };
+
+  statix.enable = true;
+  deadnix.enable = true;
+  nil.enable = true;
+  flake-checker.enable = true;
+
+  actionlint.enable = true;
+
+  markdownlint.enable = true;
+  typos.enable = true;
+
+  clippy = {
+    enable = true;
+    # override from rust-overlay, which is more up-to-date
+    packageOverrides = {
+      clippy = rustPkgs;
+      cargo = rustPkgs;
+    };
+    settings = {
+      allFeatures = true;
+    };
+  };
+
+}
diff --git a/leptos/treefmt.nix b/leptos/treefmt.nix
new file mode 100644
index 0000000..a7b9ed0
--- /dev/null
+++ b/leptos/treefmt.nix
@@ -0,0 +1,17 @@
+{ leptosfmt }:
+_: {
+  projectRootFile = "flake.nix";
+
+  programs = {
+    nixfmt.enable = true;
+    rustfmt.enable = true;
+    taplo.enable = true;
+  };
+
+  settings.formatter = {
+    leptosfmt = {
+      command = "${leptosfmt}/bin/leptosfmt";
+      includes = [ "*.rs" ];
+    };
+  };
+}
diff --git a/rust/flake.nix b/rust/flake.nix
index 060392c..a90d87c 100644
--- a/rust/flake.nix
+++ b/rust/flake.nix
@@ -57,7 +57,7 @@
           statix = checks.statix ./.;
           deadnix = checks.deadnix ./.;
           flake-checker = checks.flake-checker ./.;
-          checks = checks.clippy ./.;
+          clippy = checks.clippy ./.;
         };
 
         # for nix fmt