We value Open Source and make a point to release all our plugins on GitHub under a BSD License.
git clone https://github.com/wakatime/antigravity-wakatime.git ~/.gemini/config/plugins/antigravity-wakatime
Save your API Key to ~/.wakatime.cfg:
[settings]
api_key = waka_123
Restart Antigravity, then use it like you normally do and your coding activity will be displayed on your WakaTime Dashboard.