base: add spice configuration

base/base.nix

@@ -6,7 +6,7 @@ let
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILiUy2yjIkdryH7pYMdkCNryy9gceqXJ7bhtMvvpPBIk etorres@xenon"
   ];
 in {
-  imports = [ ./grafana-alloy.nix ./network.nix ./qemu.nix ];
+  imports = [ ./grafana-alloy.nix ./network.nix ./qemu.nix ./spice.nix ];
 
   time.timeZone = "Etc/UTC";
 

base/spice.nix

@@ -0,0 +1,14 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let cfg = config.spice;
+in {
+  options.spice = { enable = mkEnableOption "Enable SPICE guest setup"; };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [ spice ];
+
+    services.spice-vdagentd.enable = true;
+  };
+}