{
  channelsNixosStable = {
    ref = "nixos-19.09";
    rev = "eb65d1dae626f4b149566c4cbccdad7ec24af189";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "7184df6beb88c4f5f3186e5b73d5437a3461ceaf";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "712bf54f1be519c4258b16eca589b47cada37536";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "release-19.09";
    rev = "8d663335eb7b5032f637d8b719416ae4f2c1f612";
  };
}