Already done, months ago, with better taste: https://github.com/rustcoreutils/posixutils-rs

I needed this for experimenting. Sharing with others. Please file issues, to extend.

The next iteration of awk?

Passes 100% of userland tests, supporting 99% of linux syscalls (though very few filesystems!)

Early boot and early page table setup, logging single characters to simulated serial console.

Then keep adding tests/features/tests/features/...

I always wanted a kernel where I can experiment with the device driver model, eBPF, device tree and more. Now I've built one:

Helluva project — congrats on getting it running!

If you're going to plug your own project, you might want to mention that in your comment.

There's dozens of rust osdev projects. Its an open question if any become relevant like linux.

Accelerated by Claude Code, leashed tightly by unit and integration tests, and test-driven development.

Speaking as a compiler and kernel expert, the productivity boost for domain experts is real.

Compiler status: Full C99 compliance, test suites pass, alpha-beta stage, starting to test on Gentoo and open source package builds "real world builds"

Posixutils status: Very close to 1.0 (all POSIX utils, all POSIX util features, tests pass)

enums > defines

Love this! I had the same idea, and was pondering funding apps like this. Was going to call it "SimpleFree" and focus on privacy, offline, mobile, games.