{
  channelsNixosStable = {
    ref = "nixos-19.09";
    rev = "d14cea0dec2dd59e19457180feef315054ba8c57";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "a65f338ccbd679c1d9f6886d17758d99c80cd938";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "a055d4d4a41f5cb1f7f0828ef3608c449c2d9fee";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "release-19.09";
    rev = "f5c9303cedd67a57121f0cbe69b585fb74ba82d9";
  };
}