使用macOS终端几行命令搞定微信、抖音等APP多开（不用第三方工具）

微信多开，抖音多开。

# 复制微信app 并且命名
cp -R /Applications/WeChat.app /Applications/微信2.app
cp -R /Applications/WeChat.app /Applications/微信3.app
cp -R /Applications/WeChat.app /Applications/微信4.app

# 重新签名，改变ID
sudo /usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier com.tencent.xinWeChat2" /Applications/微信2.app/Contents/Info.plist
sudo xattr -rc /Applications/微信2.app
sudo codesign --force --deep --sign - /Applications/微信2.app

sudo /usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier com.tencent.xinWeChat3" /Applications/微信3.app/Contents/Info.plist
sudo xattr -rc /Applications/微信3.app
sudo codesign --force --deep --sign - /Applications/微信3.app

sudo /usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier com.tencent.xinWeChat4" /Applications/微信4.app/Contents/Info.plist
sudo xattr -rc /Applications/微信4.app
sudo codesign --force --deep --sign - /Applications/微信4.app

# 打开签名好的app 就可以扫码登录了，聊天记录保存在于~/Library/Containers/com.tencent.xinWeChat2，~/Library/Containers/com.tencent.xinWeChat3，~/Library/Containers/com.tencent.xinWeChat4
open /Applications/微信2.app
open /Applications/微信3.app
open /Applications/微信4.app

抖音多开官网下载的抖音不能与app store的同时打开，也是同样签名即可，注意0br替换你自己的路径：

sudo /usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier com.bytedance.douyin2.desktop" /Applications/0br/抖音.app/Contents/Info.plist
sudo xattr -rc /Applications/0br/抖音.app
sudo codesign --force --deep --sign - /Applications/0br/抖音.app
open /Applications/0br/抖音.app