flake.nix

{
  description = "A Nix-flake-based Gleam development environment";

  # inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/master";


  outputs = { self, 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 {
          packages = with pkgs; 
            [ 
              gleam 
              erlang_27
              nodejs
              nil
              rebar3
              deno
            ] ++ lib.optionals stdenv.isDarwin (with darwin.apple_sdk.frameworks;
            [
              Cocoa
              CoreServices
            ]);
        };
      });
    };
}