I'm doing something very similar (creating my own apps for personal use), but I'm creating iOS apps primarily.

Here's what bugs me: I cannot permanently install my apps to my iPhone because of Apple's walled garden. I need to reinstall every 7 days and constantly re-confirm that I am a "Trusted" developer.

I know I can pay Apple 100 USD a year for a developer account, but I bought this phone outright 7 years ago, I own it. (Obviously, I clearly don't in this case.) /rant