I like this, it shows there’s always a design possible with whatever materials/scraps you have lying around. And don’t forget the simplest design, if you have the space for it: just a pile on the ground.
For folks interested, we have a community dedicated to composting over at !composting@slrpnk.net Perhaps you would like to crosspost this over there as well.
For f-droid you can consider adding https://apt.izzysoft.de/fdroid/ to the tracked repositories. New builds might be available sooner there.