Learn System Design concepts and prepare for interviews using free resources.

web based CS2 2d demo player

inDrive Engineering Handbook

A rendition of everyone's favorite 1995 Microsoft operating system for Linux.

Smooth asynchronous user interfaces for iOS apps.

Google's fast compression/decompression library Snappy ported to Swift

📦 Nothing but Cache.

The Swift Programming Language book as a PDF!

Add expert Swift Concurrency guidance to your AI coding tool (Agent Skills open format): safe concurrency, performance optimization, and Swift 6 migration.

Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

List of Computer Science courses with video lectures.

A comprehensive collection of the best resources around mobile design systems. This repository includes guides, design patterns, architectural principles, and case studies to help developers create…

Linux device manager for Logitech devices

A list of cool DSLs made with Swift 5.4’s @resultBuilder

The official Swift SDK for Model Context Protocol servers and clients.

👑 Automatically tracked Steam, CS2, Dota 2, Deadlock, TF2 protobufs.

Plugin and runtime library for using protobuf with Swift

Telegram-iOS

Home to the Signal Protocol as well as other cryptographic primitives which make Signal possible.

A collection of Apple-related CTF writeups

RSS reader for macOS and iOS.

Metasploit Framework

The Swift language implementation of gRPC.

A monitor of resources

AirPods liberated from Apple's ecosystem.

Legacy mirror of Darwin Kernel. Replaced by https://github.com/apple-oss-distributions/xnu

A dependency graph management tool for the Swift Package Manager

📚 Directory of iOS books