not going to implement it like this

src/_zkapauthorizer/resource.py

@@ -109,12 +109,6 @@ def from_configuration(node_config, store, redeemer=None):
         ),
     )
 
-    from twisted.internet import reactor
-    from .lease_maintenance import lease_maintenance_service
-    maintenance = lease_maintenance_service()
-    maintenance.startService()
-    reactor.addSystemEventTrigger("before", "shutdown", maintenance.stopService)
-
     return root