Comment by mbitsnbites

I truly get that. That's also one of the reasons why I started from scratch once I got the idea, rather than researching all the available papers and implementations etc (because the latter is quite overwhelming, while the former took me about a week of spare time hacks).

My scope is also a bit unusual, I think, because one of the applications I'm thinking about is to "augment" luma-only codecs with chroma. One such codec is https://gitlab.com/llic/llic

But most of all, I wanted to learn.