I already know about the Aurora store or F-Droid to install applications for an Android phone, but there was that "repository manager" that could install and update APK files from GitHub, and... I forgot the name and I can't find it on the Google.

It could be https://github-store.org/ but I'm not sure about the name and there could be a more famous alternative.

If anyone knows, I would send you a million Schrute bucks.