diff --git a/roles/nox/defaults/main.yml b/roles/nox/defaults/main.yml
index 37df5b3..5a55188 100644
--- a/roles/nox/defaults/main.yml
+++ b/roles/nox/defaults/main.yml
@@ -17,8 +17,9 @@ nox_unit_file: |
   Environment="FLUENCE_ROOT_KEY_PAIR__PATH={{ nox_dir }}/state/root_secret_key.ed25519"
   ExecStart={{ nox_dir }}/nox
   Restart=on-failure
-  User={{ nox_user }}
+  User=root
   Group={{ nox_group }}
 
   [Install]
   WantedBy=multi-user.target
+
diff --git a/roles/prerequisites/tasks/main.yml b/roles/prerequisites/tasks/main.yml
index 8c41bf6..33f7872 100644
--- a/roles/prerequisites/tasks/main.yml
+++ b/roles/prerequisites/tasks/main.yml
@@ -9,6 +9,15 @@
   loop:
     - libhwloc-dev
     - curl
+    - qemu-kvm
+    - libvirt-daemon-system
   loop_control:
     loop_var: package
     label: "{{ package }}"
+
+- name: enable libvirtd
+  ansible.builtin.systemd:
+    name: libvirtd
+    state: started
+    enabled: true
+    daemon_reload: true