feat: enable pre-commit checks

.nix/flake.lock

@@ -0,0 +1,25 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1720418205,
+        "narHash": "sha256-cPJoFPXU44GlhWg4pUk9oUPqurPlCFZ11ZQPk21GTPU=",
+        "rev": "655a58a72a6601292512670343087c2d75d859c1",
+        "revCount": 650378,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.650378%2Brev-655a58a72a6601292512670343087c2d75d859c1/019095fe-96b2-7a7c-ad7c-2131b3fb6fa7/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

.nix/flake.nix

@@ -0,0 +1,32 @@
+{
+  description = "A flake editing flake";
+
+  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
+
+  outputs = { nixpkgs, ... }:
+    let
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import nixpkgs { inherit system; };
+      });
+    in
+    {
+      devShells = forEachSupportedSystem ({ pkgs }: {
+        default = pkgs.mkShell.override
+          {
+            # Override stdenv in order to change compiler:
+            # stdenv = pkgs.clangStdenv;
+          }
+          {
+            packages = with pkgs; [
+              pre-commit
+              commitizen
+            ];
+
+            shellHook = ''
+              pre-commit install --allow-missing-config --hook-type pre-commit --hook-type commit-msg
+            '';
+          };
+      });
+    };
+}