Projects

• GamesmanPyStars2Adding Clusterfuss to GamesCrafters' Python solver for small puzzles and games.
• kaichen.devYou are already here! My personal space at a corner of this human made internet :D
• SudoSodokuStars8Pure-logic Sudoku for iPhone, wrapped in a terminal fantasy. Free, private, and open source.
• WatchTower-AIStars1Is the AI down, or is it you? WatchTower AI probes Claude, GPT & Gemini in real time, tells you whose fault it is, and catches outages before the official status page does.
• buttercutStars3Buttercut is a personal-site theme for Next.js (App Router, React 19) that wants you to ship something beautiful without wrestling the codebase every weekend.
• Kai Course NotesStars11Course notes & materials from my studies at SUSTech, UC Berkeley, Oxford, and beyond — handwritten & LATEX notes, homework, and projects. Web-native notes on the Notion branch.