{
  channelsNixosStable = {
    ref = "nixos-20.03";
    rev = "9f0f06ac8beb8852d7ab3c5732e1c008c312f38d";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "8686922e68dfce2786722acad9593ad392297188";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "2da253a7ded5942283049b3a83388123adc27ab6";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "release-19.09";
    rev = "b78b5fa4a073dfcdabdf0deb9a8cfd56050113be";
  };
}