There is an actively maintained fork with RISC-V support and such
I would be interested in contributing to this but the UK is geoblocked.
It is also interesting to note that while the repository is quite active, there has not been any release for _8 years_, and the website is the same one at the top of this conversation, i.e. the one where the old maintainer says he quit and the benchmarks are from 20 years ago.
A small and minimalistic C compiler is actually a very important foundational project for the software world IMNSHO.
I'm definitely reminded of: https://xkcd.com/2347/
I've never seen another repo with public commit access like that. I guess the project is niche enough that you don't get spammed with bad or malicious commits.