with import (builtins.fetchGit {
  name = "nixos-21.05-2021-08-02";
  url = "https://github.com/nixos/nixpkgs/";
  ref = "refs/heads/nixos-21.05";
  rev = "d4590d21006387dcb190c516724cb1e41c0f8fdf";
}) {};

mkShell {

  buildInputs = [
    nodePackages.typescript
    python3
    psmisc
    esbuild
    watchexec
  ];

}