{ lib, config, pkgs, inputs, ... }:

let
  hostname    = "traveldroid";
  modulesPath = ./generated/modules/${hostname};
  usersPath   = ./generated/users;

  # Import all host-specific modules recursively (not evaluated yet)
  hostModules = inputs.import-tree modulesPath;

  # Import all global users
  globalUsers = inputs.import-tree usersPath;

  # Collect all Home Manager user attrsets from host modules + global users
  hmUsersList =
    map (m: m._module.args.hmUsers or {}) (hostModules.imports ++ globalUsers.imports);

in
{
  #################################
  # Core system config
  #################################
  networking.hostName = traveldroid;
  system.stateVersion  = "26.05";

  #################################
  # Enable Home Manager
  #################################
  programs.home-manager.enable = true;

  #################################
  # Module imports
  #################################
  imports =
    [
      ./boot.nix
      ./hardware-configuration.nix
    ]
    ++ hostModules.imports
    ++ globalUsers.imports;

  #################################
  # Home Manager aggregation
  #################################
  home-manager.users = lib.mkMerge hmUsersList;
}