{
  channelsNixosStable = {
    ref = "nixos-19.03";
    rev = "07e2b59812de95deeedde95fb6ba22d581d12fbc";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "34aa254f9ebf5899636a9927ceefbc9df80230f4";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "master";
    rev = "465d08d99f5b72b38cecb7ca1865b7255de3ee86";
  };
}