nanochat

create a group for dev dependencies, there is no need to install all this other stuff just for speedrun and it's exposing people to dependency chain attacks. we need to delete more dependencies. dependencies bad bad bad

delete non-essential deps from legacy use

Merge pull request #595 from svlandeg/fix/typo

Merge pull request #634 from 2bitbit/fix-docs-and-comments

Merge pull request #639 from mathieu-lacage/master