--- lang: en layout: doc redirect_from: - /doc/qubes-service/ - /en/doc/qubes-service/ - /doc/QubesService/ - /wiki/QubesService/ ref: 138 --- Usage documentation is in the `qvm-service` man page. There are also described predefined services. Under the hood, an enabled service in a VM is signaled by a file in `/var/run/qubes-service`. This can be used to implement an almost enable/disable **per-VM** switch controlled by dom0. Adding support for systemd services is pretty simple. In the VM, create the following file (and directory, if needed): `/etc/systemd/system/.service.d/30_qubes.conf`. It should contain the following: ~~~ [Unit] ConditionPathExists=/var/run/qubes-service/ ~~~ This will cause the service to be started only when you enable it with `qvm-service` for this VM.