I'm scraping a curated set of projects from Github, just to bootstrap the project and make it usable.
That creates a few events (of kinds 1063, 30063 and 32267) that go to a specialized relay, now hardcoded at wss://relay.zap.store .
So what you pull in the app comes from the relay - not from Github directly.
I pull from Github because APKs there are signed with devs' certificates, unlike F-Droid
nostr:note1yruw725u4egljsntmq0e606nwlzge9e3cy85nf9l3ralp8sqeu9sxf4req