{
  channelsNixosStable = {
    ref = "nixos-20.03";
    rev = "48723f48ab92381f0afd50143f38e45cf3080405";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "0f5ce2fac0c726036ca69a5524c59a49e2973dd4";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "7fe32a614abfd6d6afacb27d8e7c99fb6f9e41b7";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "release-19.09";
    rev = "b78b5fa4a073dfcdabdf0deb9a8cfd56050113be";
  };
}