let
  nixpkgs = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-20.09";
    rev = "c6b23ba64aea4b0e2163ff84990084a6bec455c5";
  };
in

{
  inherit nixpkgs;
  nixos = nixpkgs // {
    suffix = "/nixos";
  };
  "channels-nixos-stable" = nixpkgs;
  "channels-nixos-unstable" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "nixos-unstable";
    rev = "56bb1b0f7a33e5d487dc2bf2e846794f4dcb4d01";
  };
  "nixpkgs-master" = {
    url = "https://github.com/NixOS/nixpkgs/";
    ref = "master";
    rev = "174267e601bc2d525a685084d9712841b3ef93da";
  };
  "home-manager-module" = {
    url = "https://github.com/nix-community/home-manager";
    ref = "release-20.09";
    rev = "22f6736e628958f05222ddaadd7df7818fe8f59d";
  };
}