✺ 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
I compare chrome-use’s connection to an existing Chrome session with the new and persistent contexts used by Playwright, Puppeteer, and browser-use, explaining session state, tab ownership, connection requirements, and the limits of fingerprint testing.
An engineering-focused forensic review on my own device: from static files and runtime open paths to SQLCipher parameters, ultimately confirming the local database unlocking path and account-level key distribution model in WeChat macOS 4.0.1.52.
I run Claude Code, Codex and Pi side by side, and they can't see each other. ocs gives every AI coding session a shared channel and actually wakes the target session — on one machine or across the computers on your LAN. How it works, and the "it said OK but the message was gone" bugs I had to design around.
Copied a snippet, then a link, and lost the snippet? Pastyx remembers everything you copy. Press ⌘⇧V, pick, press Return. A native, local-first clipboard manager for macOS 26 — US$9.99 once, 7-day free trial.
Juggling work, personal and test accounts? ChooseBrowser sends each link to the right browser and Chrome profile by your URL rules. US$4.99 once, 7-day free trial.
ChooseBrowser is a link router for macOS. Write rules by domain and path, and each link goes straight to the browser or Chrome profile you picked. Multi-account testing, separate work and personal accounts, juggling clients — set up once with rules. US$4.99, one-time purchase.