NixOSConfig/lib/configuration.nix

{ hostname, lib, machineConfig, ... }: {
  imports = [
    ./modules/custom-build-vm.nix
    ./modules/custom-sops-nix.nix
    ./modules/my-users.nix
    ./modules/sddm.nix
    ./modules/unfree.nix
  ];

  config = {
    system.stateVersion = "23.11";

    # Map host keys into VM and launch vm using `virt-viewer`
    virtualisation =
      let
        vmConfig = {
          virtualisation = {
            sharedHostKeys = true;
            sharedUserKeys = true;
            usb-redirect = true;
            virt-viewer = true;
            cores = 4;
            memorySize = 4 * 1024;
          };
        };
      in {
        vmVariant = vmConfig;
        vmVariantWithBootLoader = vmConfig;
      };

    users.myUsers = machineConfig.users;

    home-manager = {
      useUserPackages = true;
      useGlobalPkgs = true;

      users =
        lib.attrsets.concatMapAttrs (username: user:
          let
            getUserConfig = import ./utils/user-config.nix { inherit lib; };
            configPath = getUserConfig { inherit hostname username; };
          in
          if (configPath != null)
          then {
            ${username} = { pkgs, ... }@args: import configPath ({
              userConfig = {
                inherit hostname username;
              } // user;
            } // args);
          }
          else {})
          machineConfig.users;
    };

    # Networking
    networking.hostName = hostname;

    # Set time zone
    time.timeZone = machineConfig.timeZone;

    # Configure keyboard layout
    console.keyMap = machineConfig.keyMap;
    services.xserver.xkb.layout = machineConfig.keyboardLayout;

    i18n.extraLocaleSettings = machineConfig.localeSettings;
  };
}