Property tax is a wealth tax, not an unrealized gain tax. You still pay if your property value goes down, you just pay less.

Programming languages is way too broad a category. There’s a lot of variation in both power and difficulty.

The last commit was two days ago and the last update was two months ago (at least for me on Android).

While this is still a massive problem, it does require a public fork at some point. So if you have a private repo that has never had a public fork, you should be safe.