@Gargron May I point to my corresponding article, directly linking to the relevant section?

android.izzysoft.de/articles/n

Unfortunately, your repo does not contain Fastlane structures (gitlab.com/-/snippets/1895688), your Play Store listing is not yet online (to pull things from there), there are no screenshots or descriptions available in your repo – and the website link gives a 404. Otherwise I had promptly added your app to my repo (apt.izzysoft.de/fdroid) meanwhile… Any chance?