let
  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-26.05";
  pkgs = import nixpkgs {
    config = { };
    overlays = [ ];
  };
in
{
  shell = pkgs.mkShellNoCC {
    packages = with pkgs; [
      gleam
      erlang-language-platform
      beam29Packages.erlang
      beam29Packages.rebar3
      deno
      just
      watchexec
    ];

    shellHook = ''
      echo "dev env loaded"
      just --list
      echo "Use just to run them."
    '';
  };
}