Adding a feature to a closed-source app

Compiling standard Java is great, that's pretty interesting but I wonder how you could use the app's class in your own classes since those are not in the classpath at compile time.. I would love to mod Android apps but I'm not sure where to properly start. For now Xposed modules does the job but I'd love to be able to patch my apps to run on non modded devices

This post took forever to write (maybe 6 hours) because I used Claude to critique my writing and it is a very thorough judge. I hope you guys enjoy it!

Neat. I feel like my Orange Juice extension did that with HN.