# flake.nix
{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
    lix-module = {
      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.93.0.tar.gz";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    vscode-server.url = "github:nix-community/nixos-vscode-server";
    agenix.url = "github:ryantm/agenix";
  };

  outputs = { self, nixpkgs, lix-module, vscode-server, agenix }: {
    nixosConfigurations = {
      valefar = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/valefar  # imports configuration.nix automatically
          lix-module.nixosModules.default
          
          # External modules
          vscode-server.nixosModules.default
          agenix.nixosModules.default
          
          # Global external module config
          ({ config, pkgs, ... }: {
            services.vscode-server.enable = true;
            services.vscode-server.nodejsPackage = pkgs.nodejs_20;
            environment.systemPackages = [ agenix.packages.x86_64-linux.default ];
          })
        ];
      };
      
      # Easy to add more hosts
      /*server2 = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/server2
          agenix.nixosModules.default
          # different services for server2
        ];
      };*/
    };
  };
}