{
  channelsNixosStable = {
    ref = "nixos-19.03";
    rev = "2516c454c35344d551420fb74541371c6bfcc5e9";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "20b993ef2c9e818a636582ade9597f71a485209d";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "147422082327a03f2a2d29e062077217a1218559";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "master";
    rev = "8467e7e10a6f4a8968710b1a8e1826cae29834b7";
  };
}