Setup roles as modules and switch to sway

machines/nix-book/configuration.nix

@@ -2,21 +2,24 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ config, pkgs, inputs, ... }:
-
+{ pkgs, ... }:
 {
   imports =
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
-      ../../roles/common/default.nix
-      (import ../../roles/desktop/default.nix { x11Only = false; inherit inputs; inherit pkgs; })
-      ../../roles/nfs-mounts/default.nix
-      ../../roles/nix/default.nix
-      ../../roles/printing/default.nix
-      (import ../../roles/users/default.nix { extraGroups = []; })
-      ../../roles/virtualisation/default.nix
     ];
 
+  roles = {
+    desktop.enable = true;
+    nfs-mounts.enable = true;
+    printing.enable = true;
+    users = {
+      enable = true;
+      extraGroups = [ "video" ];
+    };
+    virtualisation.enable = true;
+  };
+
   # Bootloader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;