APKs are now signed and have changed their appId. This means it will install on your phone as if it were a different app thus you will lose all local data (mainly added / logged in instances). This change was necessary to prepare for Play Store release.
Saw this in fdroid and immediately downloaded, super glad I did too this app is fantastic! really excellent job here!
Wait, it is on fdroid? We have not finished releasing it on fdroid, would you mind sending me a link to it?
hmm don’t know if you still need it, but here https://f-droid.org/packages/com.krawieck.lemmur/
it looks like it’s on the Izzy Repository