text: import ((import <nixpkgs> {}).fetchFromGitHub {
      owner  = "NixOS";
      repo   = "nixpkgs";
      rev    = "2eeaa0ae55960832510643bc10f88f5d961c3b6a";
      sha256 = "1z2z3cws2czf0rfpzsl5fkbwm8fjjd1ayaikbm17wskqdmfbhraj";
  })
  