Afaik if you have the watch locally available you can just connect it to your PC and deploy it there.
Even the SDK is available for "free": https://developer.garmin.com/connect-iq/overview/
Even the SDK is available for "free": https://developer.garmin.com/connect-iq/overview/
there is no better way to get good information on the internet than to post something factually wrong!
it's finally time for me to code that app
Good old Murphy’s law!