Master programming by recreating your favorite technologies from scratch.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Simple operating system in C++, written from scratch

The Serenity Operating System 🐞

Minoca operating system

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

Go DDD example application. Complete project to show how to apply DDD, Clean Architecture, and CQRS by practical refactoring.

A comprehensive list of books on Software Architecture.

Starter-kit for writing services in Go using Kubernetes.

A collection of public resources about how software companies test their software

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

IntelliJ plugin - use Eclipse's code formatter directly from IntelliJ. https://plugins.jetbrains.com/plugin/6546

How to Make a Computer Operating System in C++

Reformats Java source code to comply with Google Java Style.

Modern HTTP benchmarking tool

HTTP load testing tool and library. It's over 9000!

A book-in-progress about the Linux kernel and its insides.

Getting Started with Spring Boot 3:

An Emacs framework for the stubborn martian hacker

Contains various coding answers to questions from multiple online platforms.

Coding problems solved in Kotlin, Groovy, Java, Swift

Mouseless Workflow (WIP)

Fast and robust Emacs setup.

A complete computer science study plan to become a software engineer.

Draft of a guide for using emacs with evil

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.