qoir VS pics

It's important to notice that ZPNG beats virtually all QOI variants, as discovered in: https://github.com/nigeltao/qoir

But most platforms these days have some form of CRC32 "acceleration". Adler32 is easy to compute so I'm even less concerned there.

I spent a bunch of time optimising the code in [fpnge](https://github.com/veluca93/fpnge), which is [often notably faster than fpng](https://github.com/nigeltao/qoir/blob/5671f584dcf84ddb71e28d...), yet checksum time is basically negligible.

Having said that, the double-checksum aspect of PNG does feel unnecessary.

* AFAIK it does this while beating the original QOI in terms of speed AND efficiency

Lots of benchmarks in: https://github.com/nigeltao/qoir

QOIX

QOIX is my very own version that adds:

Using this framework, you can started with some excercises or dig into some file formats if you want something different (many file format have segments with variable length so the header will provide either offset or length which makes a good execercise for understanding pointer arithmetic).

And this is not official, but you'll probably like it: https://github.com/corkami/pics/tree/master/binary/pe101

Author's github: https://github.com/corkami/pics

He works on things like hash collisions, image files that contain an image of their own hash, "polyglot" files and such like.

I think this is intended as a "minimum viable mp4 file" to show what the required binary parts are.

ELF Executable and Linkable Format diagram by Ange Albertini