PingguoTones: Pinyin with Tone Marks Input Method for macOS

PingguoTones lets you write pīnyīn with tone marks on macOS.

Installation and use (as of macOS 26.2)

1. Clone the whole Git repository, or download it as a ZIP file. Do not manually copy the text from pingguotones.inputplugin as it might change the file encoding and cause the following steps to fail.
2. Double-click on the file pingguotones.inputplugin in Finder. If the file is prevented from opening by macOS, go to "System Settings → Privacy & Security → Security → Open Anyway".
3. Restart your computer.
4. Go to "System Settings → Keyboard → Text Input → Edit…", then press + in lower-left corner to add a new input method. Find "PingguoTones" and add it to your input sources (it should be listed under "Chinese, Simplified").
5. You may delete the downloaded repository. The pingguotones.inputplugin file was automatically copied to ~/Library/Input Methods in step 2.

To type "pīnyīn", switch to the PingguoTones input method and type pin1 and space, followed by yin1 and space.

Uninstallation

1. Remove pingguotones.inputplugin from ~/Library/Input Methods.
2. Restart your computer.

Installation process courtesy of @andrejbauer (https://gist.github.com/andrejbauer/333f81bb7394502a8539ccf93c7d703f).