Linux kernel source tree

The fastest path to AI-powered full stack observability, even for lean teams.

How to create an OS from scratch

BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more

Open-source keyboard firmware for Atmel AVR and Arm USB families

A free Windows-compatible Operating System

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

A Compiler Writing Journey

Official Git mirror of the SQLite source tree

A text editor in less than 1000 LOC with syntax highlight and search.

tiniest x86-64-linux emulator

Transmits AM radio on computers without radio transmitting hardware.

A little fail-safe filesystem designed for microcontrollers

The seL4 microkernel

Tutorial: Writing a "bare metal" operating system for Raspberry Pi 4

Writing an OS in 1,000 lines.

pongoOS

An open-source Unix operating system -- this is a read-only mirror of the official repository at https://code.illumos.org/plugins/gitiles/illumos-gate

A Simple Unix-like operating system

Cryptographic library

user-mode TCP/IP stack based on linux tap device

Less - text pager

Message-passing kernel + userspace

Repository for Xinu source code

Mirror of my from-scratch x86_64 UNIX-like OS.

my resume in a home made operating system

Manticore is a research operating system, written in Rust.

Asynchronous Filesystem Replication

Nit language

Implementations of cat(1) from various sources.