Perusing the Nim discord, it looks like some of the people behind this project were once Nim devs (think maintainers), but this project is also considered unusable and constantly under development. There is also talk about Nim not accepting PRs soon enough, and knowing ahead of finishing your work that your PR will be approved with NimSkull.
I could spend more time looking, but really these are the sort of things that should be in their own readme in plain English instead of leaving me and everyone else who has no context confused.
AFAICT, it's an opinionated refactoring of the core because... Reasons.
The devs might want to consider the lost time, and ultimate impact, of Flickr rewriting its internals for... Similar reasons. Sure, the project may seem unwieldy, but major refractors or rewrites are never worth it.
I could spend more time looking, but really these are the sort of things that should be in their own readme in plain English instead of leaving me and everyone else who has no context confused.