{
  description = "Go dev shell";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
  };

  outputs = { self, nixpkgs }:
    let
      allSystems = [
        "x86_64-linux"
        "aarch64-linux"
        "x86_64-darwin"
        "aarch64-darwin"
      ];

      forAllSystems = f: nixpkgs.lib.genAttrs allSystems (system: f {
        pkgs = import nixpkgs { inherit system; };
      });
    in
    {
      devShells = forAllSystems ({ pkgs }: {
        default = pkgs.mkShell {
          packages = with pkgs; [
            go
            gopls
            gotools
            go-tools
          ];

          shellHook = ''
            echo "<go dev shell>"
            echo "Go version: $(go version)"
          '';
        };
      });
    };
}