Wechat Multi

This is a macOS utility that lets you run multiple WeChat instances simultaneously by duplicating the app, changing its Bundle ID, and re-signing it. When you say "open two WeChats" or "微信双开", it handles the duplication automatically and creates a copy called 小绿书.app. The main gotcha is that WeChat updates break the duplicates, so you'll need to rebuild them after each official update. It requires sudo access and includes a sudoers configuration snippet to avoid constant password prompts. The workflow is straightforward: auto-generate copies when you need them, use rebuild after updates, and kill all instances when you're done. Chinese speakers will recognize 小绿书 as the colloquial name for this approach.