{
  channelsNixosStable = {
    ref = "nixos-20.03";
    rev = "0c59c1296b23abc25a6383ff26db2eeb17ad8a81";
  };
  channelsNixosUnstable = {
    ref = "nixos-unstable";
    rev = "c59ea8b8a0e7f927e7291c14ea6cd1bd3a16ff38";
  };
  nixpkgsMaster = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "a332da8588aeea4feb9359d23f58d95520899e3c";
  };
  homeManagerModule = {
    url = "https://github.com/rycee/home-manager";
    ref = "release-20.03";
    rev = "4a8d6280544d9b061c0b785d2470ad6eeda47b02";
  };
}