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A curated collection of step-by-step guides to rebuild your favorite technologies from scratch — databases, operating systems, compilers, neural networks, game engines, Docker, Git, blockchain, and more. Master programming through hands-on creation across 30+ domains with tutorials in C, Python, Rust, Go, JavaScript, and many other languages.

Markdown
527.1k
PostHog/posthog

PostHog is the open source platform for building self-driving products. It combines product analytics, session replay, feature flags, experiments, error tracking, AI observability, surveys, and more — giving agents and teams all the context needed to diagnose issues, uncover opportunities, and ship fixes. Steer it from Slack, web, desktop, or MCP.

Python
36.1k

Become a cracked AI/ML Research Engineer

TypeScript
6.5k

Anti-AI-slop design skill for Claude Code, Cursor, and Codex.

CSS
11.8k
github/copilot-sdk

Official multi-language SDK for embedding GitHub Copilot's agent runtime into apps. Supports TypeScript, Python, Go, .NET, Java, and Rust. Define custom tools and agents, integrate MCP servers, enable Fleet Mode for parallel orchestration, stream responses, and use BYOK—all powered by the production-tested Copilot CLI engine.

Java
9.8k

Bonsai Demo

Shell
1.7k

Protocol Buffers (protobuf) is Google's battle-tested, language-neutral and platform-neutral mechanism for serializing structured data. It uses a compact binary wire format that is 3–10x smaller and faster than JSON/XML, and supports code generation for C++, Java, Python, Go, Rust, C#, Ruby, PHP, Dart, Objective-C, and JavaScript — making it the backbone of gRPC, microservices, and large-scale distributed systems.

C++
71.5k

A local-first code intelligence graph for AI coding tools. Builds a persistent structural map of your codebase via Tree-sitter AST parsing, tracks changes incrementally, and exposes 30 MCP tools for blast-radius analysis, risk-scored PR review, and token-efficient context retrieval. Benchmarked at ~82x median token reduction across 6 real repositories. Supports 35+ languages and integrates with Claude Code, Cursor, Codex, Copilot, and 10+ other platforms.

Python
19.7k

Top Repositories

The most popular repositories on GitHub.

1

A curated collection of step-by-step guides to rebuild your favorite technologies from scratch — databases, operating systems, compilers, neural networks, game engines, Docker, Git, blockchain, and more. Master programming through hands-on creation across 30+ domains with tutorials in C, Python, Rust, Go, JavaScript, and many other languages.

2

A curated list of awesome lists covering all kinds of interesting topics. This meta-list serves as the central directory for discovering high-quality resources on programming languages, frameworks, tools, and various technology domains.

3

The world's largest free coding education platform. Offers a self-paced full-stack web development and machine learning curriculum with interactive coding challenges, certifications across responsive web design, JavaScript, Python, databases, and APIs, plus developer language certifications. Built on React, Fastify, and Gatsby, with a vibrant open-source community that has helped over 100,000 people land their first developer job.

4

A collectively curated list of free public APIs for software and web development. This extensive repository contains thousands of APIs across 100+ categories including animals, finance, health, music, news, science, sports, weather, and more. Maintained by the community and APILayer team.

5

A collaborative, multilingual collection of freely available programming books, courses, podcasts, and interactive tutorials. Maintained by the Free Ebook Foundation, it indexes thousands of learning resources across numerous programming languages and computer science topics.

6

OpenClaw is a self-hosted personal AI assistant that connects to WhatsApp, Telegram, Discord, iMessage and 20+ channels. Features voice wake, live canvas, browser automation, and runs on any OS with local-first privacy.

7

Community-driven interactive roadmaps, guides, and resources for developers. Covers frontend, backend, DevOps, AI, and more with clickable nodes for detailed learning paths and best practices.

8

Learn how to design large-scale systems. Prep for the system design interview. An organized collection of resources covering scalability, performance, availability, and common system design patterns with solutions and Anki flashcards.

9

A comprehensive multi-month self-study plan for software engineering interviews at top tech companies. Covers data structures, algorithms, Big-O, graphs, dynamic programming, system design, and more, with curated video courses, book recommendations, coding practice platforms, and flashcard strategies.

10

A curated list of awesome Python frameworks, libraries, software and resources. Covers web frameworks, data analysis, machine learning, testing, and more.