--- a/core/moduleapi.lua	Sat Apr 01 11:56:38 2023 +0100
+++ b/core/moduleapi.lua	Sat Apr 01 11:59:50 2023 +0100
@@ -693,4 +693,9 @@
 	end
 end
 
+-- Execute a function, once, but only after startup is complete
+function api:once(f)
+	return prosody.started:next(f);
+end
+
 return api;