{
  channelsNixosStable = {
    ref = "nixos-19.09";
    rev = "4ad6f1404a8cd69a11f16edba09cc569e5012e42";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "e89b21504f3e61e535229afa0b121defb52d2a50";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "35d99698aecce66f5b6597d3b8efa2b23e120636";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "master";
    rev = "9781f3766de7293a67aa8098edb5dbe367939b36";
  };
}