Hi @johanandren, thanks for the reply. I will leave it in this case.
If I would have found any kind of documentation about the API of the local filesystem snapshot plug-in (which writes to a distributed filesystem in our case), I would have used this. Before AKKA typed I had an API to delete all snapshots (see How to remove/clean-up state of EventSourcedBehavior when task done?), now I don’t see any public API anymore how to do this. That’s why I am using the internal API.