Master programming by recreating your favorite technologies from scratch.

📚 Freely available programming books

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

Curated list of project-based tutorials

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff.

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

Truly independent web browser

Windows inside a Docker container.

The open-source CapCut alternative

A WhatsApp client library for NodeJS that connects through the WhatsApp Web browser app

MacOS inside a Docker container.

Memory engine and app that is extremely fast, scalable. The Memory API for the AI era.

BullMQ - Message Queue and Batch processing for NodeJS and Python based on Redis

Socket-based TS/JavaScript API for WhatsApp Web

Writing an OS in 1,000 lines.

Node.js Background jobs backed by redis.

TypeScript/JavaScript SDK for Gemini and Vertex AI.

A NeoBrutalism styled React + TailwindCSS UI library for building bold, modern web apps.

All-in-one resource kit for frontend devs & designer

🖼️ Feature-rich media-to-ASCII convertor

A high-reliability, full-stack audio/video recording platform. Built to explore and learn advanced topics like WebRTC, FFmpeg/GStreamer processing, S3 multipart uploads, and scalable monorepo archi…

Simple, reliable & efficient distributed task queues for C++17

You can convert text/word word file to your handwriting. The results are indistinguishable from original handwritting.

Typescript UI library ^^

A Javascript style event loop for C++11

A redis clone written in go, compatible with redis-client libraries.

Lexit is your personal vocabulary vault, save words you discover while reading or watching, and get AI-powered meanings and examples. A simple way to understand, store, and revisit words to actuall…