[gnramires]

Since logging in is an online activity, that means every modification should automatically sync to the database as well. Thus I've never had conflicts, I think Seafile handles conflicts very well (mostly silently?). Never had an issue really (although the Android app is slightly clunky).

[vetinari]

Logging in doesn't have to be on the public internet. It doesn't have to be a some intentionally isolated network either, but think setting up IoT devices: you log to the AP they created, create credentials and then connect them to some other network with Internet connectivity. So while you are connected to their AP, you don't have sync.