Rare find

CavOS. A complete operating system written in C that you can actually read and understand.

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Vaya's read on this project

Problem, audience, market, and the verdict — sign in to see it.

Updates

June 2026

Better care of the num_sectors field in ext2 Jun 13
Use 0 instead of false when returning an integer like a normal person Jun 13
Use a hashing algorithm as an optimization Jun 13
Implement a global ext2 object caching system Jun 13
Fat32 more streamlined parsing Jun 10
Fat32 off by one, sanity checks and small leak fixes Jun 10
Networking & general stuff I held locally Jun 8

February 2026

AVL traversal function Feb 7
New circular functions & clock stuff Feb 7
POLLRDNORM & proper select remaining time Feb 7

January 2026

Better ext2 deletion (fs still needs work) & more multithread conside… Jan 10
Remove obsolete task blocking system Jan 10
Pipe fixes, multithreaded exit considerations Jan 10

December 2025

Fix deadlock when address is used Dec 13
Separate free port tracking from udp Dec 13
Start a custom network stack. Implements eth, arp, ipv4 & udp along w… Dec 6
Small fix forgotten in my local tree Dec 6
Small bugfix Dec 2
Move unix sockets to a circular buffer instead of inefficient memmoves Dec 2

November 2025

Add make tools' directory to gitignore Nov 30