{
  channelsNixosStable = {
    ref = "nixos-19.09";
    rev = "eb65d1dae626f4b149566c4cbccdad7ec24af189";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "2628f20267d0c917772abc4c0a7c35788a740b31";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "b3c85349110f193d5b234b7855c400fccd26499d";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "release-19.09";
    rev = "8d663335eb7b5032f637d8b719416ae4f2c1f612";
  };
}