{
  description = "Go development environment";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            go
            gotools
            gopls
            go-outline
            gocode-gomod
            gopkgs
            godef
            golint
            air

            postgresql
            pgcli

            migrate

            docker
            docker-compose

            jq
            curl
            just
          ];

          shellHook = ''
            echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
            echo "🚀 Go Development Environment"
            echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
            echo "Go version: $(go version | cut -d' ' -f3)"
            echo "PostgreSQL: $(postgres --version | cut -d' ' -f3)"
            echo ""
            echo "Quick commands:"
            echo "  docker-compose up -d    # Start Postgres"
            echo "  docker-compose down     # Stop Postgres"
            echo "  just migrate-up         # Run migrations"
            echo "  just run                # Run the API"
            echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
          '';
        };
      }
    );
}