{
  description = "Tulga's multi-device NixOS configuration (no global modules)";

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

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

    nix-colors.url = "github:misterio77/nix-colors";

    zen-browser = {
      url = "github:0xc000022070/zen-browser-flake";
      inputs.nixpkgs.follows = "nixpkgs";
    };

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

  outputs = { self, nixpkgs, home-manager, nix-colors, zen-browser, disko, ... }:
    let
      system = "x86_64-linux";
    in {
      # 
      nixosConfigurations.virgil = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          ./hosts/virgil/configuration.nix
          home-manager.nixosModules.home-manager
        ];
        specialArgs = { inherit home-manager; };
      };

      # 
      nixosConfigurations.archangel = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          ./hosts/archangel/configuration.nix
          home-manager.nixosModules.home-manager
        ];
      };

      # placeholder
     #nixosConfigurations.server = nixpkgs.lib.nixosSystem {
     #  inherit system;
     #  modules = [
     #     ./hosts/server/configuration.nix
     #   ];
     # };
    };
}