Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/homepage/blame/commit/9984e7894fa04fe0ddb4b49850fe4b4ba2cf99bb/docs/widgets/services/homebridge.md
You should set ROOT_URL correctly, otherwise the web may not work correctly.
The Homebridge API is actually provided by the Config UI X plugin that has been included with Homebridge for a while, still it is required to be installed for this widget to work.