Streamie (streamieapp.com), which started its life as CameraMan (macOS only), was my DIY solution for getting my security cameras on my desktop computer. Later, when tvOS (Apple TV) finally added VideoToolbox support, I had a much better platform to target for such things.
I started dabbling with this project in 2014. It’s a full time endeavor these days. I become _very_ uncomfortable when I think about how I’d react if I lost all copies of the source code. I don’t think I’d try to start over.