let
  nixpkgs = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-22.05";
    rev = ''
      79e63f30ed2ff36cd0d9c2f7dadae5925c1a65db'';
  };

in {
  inherit nixpkgs;
  nixos = nixpkgs // { suffix = "/nixos"; };
  "channels-nixos-stable" = nixpkgs;
  "channels-nixos-unstable" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-unstable";
    rev = ''
      652e92b8064949a11bc193b90b74cb727f2a1405'';
  };
  "channels-nixos-unstable-small" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-unstable-small";
    rev = ''
      18ee49839ea8817218c3bfe3a62e06f47a10fdd5'';
  };
  "nixpkgs-master" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = ''
      aac1f0b25e6b04afad8e05dec5828f5c02398bd1'';
  };
  "home-manager-module" = {
    url = "https://github.com/nix-community/home-manager";
    ref = "release-22.05";
    rev = ''
      6639e3a837fc5deb6f99554072789724997bc8e5'';
  };
}