{
  description = "main config";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    nix-index-database.url = "github:nix-community/nix-index-database";
    zen-browser.url = "github:0xc000022070/zen-browser-flake";
    nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, home-manager, nix-index-database, ... }@inputs: {
    nixosConfigurations.rainix = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [ 
        ./configuration.nix
        nix-index-database.nixosModules.nix-index
        {
          programs.nix-index-database.comma.enable = true;
        }
        home-manager.nixosModules.home-manager
        {
          home-manager.useGlobalPkgs = true;
          home-manager.useUserPackages = true;
          home-manager.users.rainy = import ./home.nix;
        } 
      ]; 
    };
  };
}