直接两条命令，别的什么都不用干：
brew install d12frosted/emacs-plus/emacs-plus@30 --with-dbus --with-debug --with-mailutils --with-no-frame-refocus --with-xwidgets
osascript -e 'tell application "Finder" to make alias file to posix file "/opt/homebrew/opt/emacs-plus@30/Emacs.app" at POSIX file "/Applications"'
开始使用 Emacs 30～