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 ]; }