Adding a new source for every app becomes tiresome, especially when switching devices.

I do see potential for a closed source repo managed like an app store, but adding a repo for every app adds unnecessary security risks (as the app specific repo can contain any number of apps).

> adding a repo for every app adds unnecessary security risks

Could you speak more to your security concerns about adding repos? To the very best of my knowledge it doesn't auto-download from all the repos, that would be crazy, and it for sure doesn't auto-install from them