treequell existing Play Store alternatives are fatally flawed.
How so?
I don't really understand the logic to implement Accrescent either - yes it's good to have a chain of trust from the OS to other apps, but helpful is it if there's only like ten of those other apps in total?
Why not have F-Droid in the Graphene App Store? It's massively well-established, mature in its own app development, and trusted by millions. (If the security issue is that users can add 3rd-party repos, well, that's a user decision just like using Play Store, isn't it? What is F-Droid's "fatal flaw"?)