I just looked, and Chimera also offers distrobox. I didn't have the need to really use it yet, but it sounds like it would be the best because of its desktop integration.
I'm using sftp in Keepass2Android to sync the file while I'm at home. When I'm not at home, it uses the local copy on the phone.
When the password file has changed on my home server and on the phone, Keepass2Android will ask if it should merge the databases. I'm not sure what Syncthing would do in that situation.
I'm quite happy with my Tasmota outlets. They don't have a display, but I have a thing with a display already with me, so why would I need another display at the outlet, which would make it bulkier and more inconvenient to use.
Domradio.de is made by the archdiocese Cologne. They don't know about such church records and they write:
As beautiful as the story is, it is also unlikely. In the 17th century, nativity plays were forbidden in churches. There is also no written evidence of the story anywhere. However, there is evidence of a church connection. In 1957, Gregory Keller applied for a patent in the USA for the first industrial machine for making candy canes. And Keller was a Catholic priest.
Or use an existing format like .m3u or .pls.