refactoring for iServer and isWorkstation: part 1

hosts/modules/virtualisation.nix

@@ -0,0 +1,38 @@
+{
+  hostType,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  config = lib.mkMerge [
+    # Common configuration
+    {
+      virtualisation.podman = {
+        enable = true;
+        dockerCompat = true;
+        autoPrune.enable = true;
+        extraPackages = [ pkgs.podman-compose ];
+      };
+
+      systemd = {
+        services.podman-auto-update.enable = true;
+        timers.podman-auto-update.enable = true;
+      };
+
+    }
+
+    # Server specific configuration
+    (lib.mkIf hostType.isServer {
+    })
+
+    # Workstation specific configuration
+    (lib.mkIf hostType.isWorkstation {
+      virtualisation = {
+        libvirtd.enable = true;
+        lxd.enable = true;
+      };
+    })
+  ];
+}