let
  nixpkgs = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-20.09";
    rev = "52090c613ad854abb824dcbba20e19bfa3890e91";
  };
in

{
  inherit nixpkgs;
  nixos = nixpkgs // {
    suffix = "/nixos";
  };
  "channels-nixos-stable" = nixpkgs;
  "channels-nixos-unstable" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-unstable";
    rev = "83d907fd760d9ee4f49b4b7e4b1c6682f137b573";
  };
  "nixpkgs-master" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "73b982e62194a5d85827d87b0851aee06932979f";
  };
  "home-manager-module" = {
    url = "https://github.com/nix-community/home-manager";
    ref = "release-20.09";
    rev = "2aa20ae969f2597c4df10a094440a66e9d7f8c86";
  };
}