Use nostr:nprofile1qqs83nn04fezvsu89p8xg7axjwye2u67errat3dx2um725fs7qnrqlgzqtdq0 😉 where it is signed by its developer nostr:nprofile1qyghwumn8ghj7mn0wd68ytnvv9hxgtcqyp6hjpmdntls5n8aa7n7ypzlyjrv0ewch33ml3452wtjx0smhl93ja8kylg . On F-Droid you are blindly trusting the middleman.
Discussion
Never heard of Zapstore but I'll check it out. At the moment, I use a combo of Obtainium, F-Droid (more specifically, Droid-ify) and Aurora for my apps but I'm down to check other stores and sources 😎