chore: inital commit.

shell.nix

@@ -0,0 +1,39 @@
+{
+  pkgs ? (
+    let
+      inherit (builtins) fetchTree fromJSON readFile;
+      inherit ((fromJSON (readFile ./flake.lock)).nodes) nixpkgs gomod2nix;
+    in
+      import (fetchTree nixpkgs.locked) {
+        overlays = [
+          (import "${fetchTree gomod2nix.locked}/overlay.nix")
+        ];
+      }
+  ),
+  mkGoEnv ? pkgs.mkGoEnv,
+  gomod2nix ? pkgs.gomod2nix,
+  pre-commit-hooks,
+}: let
+  goEnv = mkGoEnv {pwd = ./.;};
+  pre-commit-check = pre-commit-hooks.lib.${pkgs.system}.run {
+    src = ./.;
+    hooks = {
+      # General formaters
+      end-of-file-fixer.enable = true;
+      mixed-line-endings.enable = true;
+      # Git commit lint
+      commitizen.enable = true;
+      # Go section
+      gofmt.enable = true;
+      # golangci-lint.enable = true;
+      govet.enable = true;
+    };
+  };
+in
+  pkgs.mkShell {
+    inherit (pre-commit-check) shellHook;
+    packages = [
+      goEnv
+      gomod2nix
+    ];
+  }