Garmin wearables Integration (without garmin connect)

Hello,

i know there is a garmin connect integration available in HACS which requires a garmin connect account.
For those who are not syncing their data to the garmin cloud, this isn’t working. I personally use gadgetbridge for storing my data locally on my android phone.

Is there some other way to integrate

  1. the long term fitness data
  2. the live data from the wearable

into home assistant? Some general .fit/.tcx file import?

Ultimately it would be nice to have dashboards for long time evaluation etc. but would be also cool to have live data coming from the wearables.

Any ideas?