Really quickly build APKs on handheld device (smartphone and tablet) in Amazon, Android, Chromebook, PRoot and Windows📲 See https://buildapks.github.io/docsBuildAPKs/setup to start building APKs.
Make your own local or online repositories of Android apps on Windows. Easy F-Droid like repo structure and using it's Original App as store. Also an easy way to get info from an APK file. Enjoy your REPository LINK APK MANAGER. Remember README file, it's important!
common libs that had their VOID method all-emptied (but the .locals and return-void lines) including constructors. This is a safe, easy and logic-less way of removing ads/analytics/reports/promotion'ed-content being used. After decompiling your APK with APKTool you can replace the folders with those here to minimalise/nullify the behavior of that lib. this was done manually :|