{
  channelsNixosStable = {
    ref = "nixos-19.03";
    rev = "aef662d2eb532eeb9976068fd1705e3cf3663054";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "73392e79aa62e406683d6a732eb4f4101f4732be";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "51aa3cc4855c5964a6e71adcf7b79c1a0c23f322";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "master";
    rev = "95382060ebaa19ec49a861921216b1db8460b314";
  };
}