If you check on Kivy Discord (or even in buildozer issues: kivy/buildozer#1601), there's a few mentions (including mine) of twisted failing to build because of zope_interface. It seems to work properly if we remove the fix-init patch, so maybe we're indeed in the future (cf comment in the recipe) and this errors out?

I opened this issue (instead of directly making a PR) to discuss the situation, in particular to check if people manage to properly build projects that use twisted without issues, in which case maybe the fix-init patch isn't the root cause.