Hm… good question. I haven’t considered that yet.
An APK download is already available on https://f-droid.org/en/packages/io.github.divverent.aaaaxy/ but it usually lags behind by about one week (not that many changes are still happening, right now I’m mainly doing localization) - is that good enough, or is there any additional value from uploading the APK directly on Itch?
If I did that, it’d have a different signing key than both the Play and the F-Droid version, which would basically prevent any kind of automatic updating. Or is there a way to automatically update from Itch APK uploads?