{
  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
  inputs.nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable-small";
  inputs.nixpkgs-master.url = "github:nixos/nixpkgs/master";

  inputs.home-manager = {
    url = "github:nix-community/home-manager/master";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = _: {};
}