✺ welcome to my sketchbook ✺
Hi, I'm Guo Li (leeguoo)
· Guo Li · full-stack developer ·
Guo Li (郭立) · full-stack developer · ex-Qunar & Zhihu · reverse engineering / AI agents / developer tools
· Guo Li · full-stack developer ·
Guo Li (郭立) · full-stack developer · ex-Qunar & Zhihu · reverse engineering / AI agents / developer tools
My open-source tools packaged as apps you can just download — free, with more on the way → app.leeguoo.com
From QR code authorization and transport and application-layer encryption to synchronization cursors, message transactions, and bidirectional acceptance testing after uninstalling WeChat, this article reviews how we reconstructed a standalone core for WeChat text communication step by step.
Using a single reproducible file, we explain the image pipeline in WeChat 4.1.9 for macOS, covering image encoding, account key derivation, segmented AES and XOR processing, DAT file restoration, and high-resolution resource downloads.
A five-minute walkthrough of why agents should use the Chrome you're already signed into, how chrome-use connects to it, how it leaves your tabs alone, and what happens at a captcha.
motion-use is an open-source video tool. Your coding agent writes exact-time drawing code, renders it locally, then decodes the finished MP4 and checks it. With a one-minute film where every clip shown was made with it.
An open-source command-line tool that lets agents like Claude Code and Codex operate a Switch running Atmosphère and sys-botbase over a local network: OCR for reading screen text, tapping by text, waiting for screens to appear, buttons and sticks, touch, and screenshots.
Friends came over but you only have two Joy-Con? If your Switch has Atmosphère and sys-botbase installed, Pocket Gamepad can turn your Mac keyboard or spare phone into a third controller, with a 7-day free trial and a one-time US$1.99 purchase afterward—no need to buy a Pro Controller.