Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.

The Most Complete React UI Component Library

A Text User Interface library for the Rust programming language

Simple Golang implementation for transactional outbox pattern for PostgreSQL using jackc/pgx driver

High performance UI layout library in C.

Master programming by recreating your favorite technologies from scratch.

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

A Rust library for creating Excel XLSX files.

A modern alternative to ls

Backstage is an open framework for building developer portals

🎓 Path to a free self-taught education in Computer Science!

A modern runtime for JavaScript and TypeScript.

Project for learning Node.js internals

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Educational blog posts for Rust beginners

A collection of familiar, friendly, and modern emoji from Microsoft

🇺🇦 Your meetings at your fingertips in the macOS menu bar

📚 Freely available programming books

A modern, high customizable, responsive Jekyll theme for documentation with built-in search.

Lightweight clipboard manager for macOS

Main Web Site (Online Books)

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

A Rust library for PDF document manipulation.

Ultimate Solidity, Blockchain, and Smart Contract - Beginner to Expert Full Course | Python Edition

Curated list of project-based tutorials

The Hypersistence Utils library (previously known as Hibernate Types) gives you Spring and Hibernate utilities that can help you get the most out of your data access layer.

The Rust Programming Language

Rust Memory Container Cheat-sheet

SteVe - OCPP server implementation in Java. Your trusted open-source EV charging station management system since 2013. Used by CPOs, manufacturers and developers worldwide. Managed cloud →

Original course HDL solutions, F# implementations for the software stack, and VHDL implementations for the hardware stack for the nand2tetris course and The Elements of Computing Systems book.