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

C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.

AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.

An agent skill that scans web projects for common AI-generated design patterns and suggests or applies fixes to remove them.

TidGi is an privacy-in-mind, automated, auto-git-backup, freely-deployed knowledge management Desktop note app, based on Tiddlywiki, with REST API for web-clipping and Anki connect. 「 太记 」是一个基于「 太微 TiddlyWiki 」的知识管理桌面应用，能保护隐私内容、高级自动化、自动Git云备份、部署为博客，且可通过RESTAPI与Anki等应用连接。（迭代开发中欢迎试用，开发进度见下方链接）(Under active development, see website below for details)

Bot that bridges Feishu/Lark messenger with a local Claude Code or Codex CLI. Streaming cards, per-chat sessions, multiple workspaces

Render JSX, HTML, and CSS to images without a headless browser. OG cards, animated GIFs, and video frames from Node.js, edge runtimes, browsers, or Rust. Drop-in next/og replacement.

Obelisk indexes past agent sessions (Claude Code, Codex, Kimi Code, Pi) into a queryable SQLite database with a CLI skill for agents and an Electron app for humans.

A modern Anki custom scheduling based on Free Spaced Repetition Scheduler algorithm

AI video skill for Claude Code & Codex — cinematic product videos with Remotion: 106 shot recipe cards, 161 motion previews, a production-ready template

A long-form article / blog post — masthead, hero image placeholder, article body with figures and pull quotes, author byline, related posts. Use when the brief asks for "blog", "article", "post", "essay", or "case study".

Self-contained floating chat widget with welcome screen, social links, meeting button, and message input. Single HTML file, zero dependencies.