Explore live open-source projects and AI models.

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

:books: 技术面试必备基础知识、Leetcode、计算机操作系统、计算机网络、系统设计

Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发

Curated coding interview preparation materials for busy software engineers

A collection of DESIGN.md files analysis by popular brand design systems. Drop one into your project and let coding agents generate a matching UI.

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

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

🎨 Local-first, open-source Claude Design alternative. 🖥️ Native desktop app. ⚡ 259+ Skills · ✨ 142+ Design Systems 🖼️ Web · desktop · mobile prototypes · slides · images · videos · HyperFrames 📦 Sandboxed preview · HTML/PDF/PPTX/MP4 export 🤖 Claude Code / OpenClaw / Codex / Cursor / OpenCode / Qw... Read more

Learn how to design systems at scale and prepare for system design interviews

Platform dedicated to building an open foundation for applied Artificial Intelligence, designed for people seeking production-ready AI systems they can truly control, extend and deploy anywhere.