I went this path too. And just recently started using https://github.com/imranr98/obtainium
Maby I will start to install every opensource app directly from the source. Since nostr:nprofile1qqs83nn04fezvsu89p8xg7axjwye2u67errat3dx2um725fs7qnrqlgzqtdq0 still is mostly signed by the zapstore account.