I’m not sure. Maintaining an open source project requires even more time than a closed source project. You can have a community-oriented closed source project, too.
> and doubling down on the privacy / local storage angle
Yeah!
Realistically most open source android apps do not receive many, if any, contributions from outsiders. Being open source does however signal the app isn't likely to become a paid shitfest.
Code doesn't have to be perfect to be open.
frida.re has a ton of useful features and community tooling built around it including scripts that will let you "un-pin" certificates by hooking and rewriting the functions that verify whether cert pinning worked or not.
https://codeshare.frida.re/@masbog/frida-android-unpinning-s...