With all the drama around the Strava T&C changes and the recent (fantastic) addition of pushing/pulling data to/from Zwift the last missing piece of the puzzle to remove Strava from my ‘data pipeline’ is Hammerhead.
The feature request boils down allowing intervals to pull activities from the Hammerhead Dashboard.
I’m not aware of a documented API for pulling data from the dashboard but https://api.hammerhead.io/users/{USER_ID}/activities does let one enumerate the activities etc. I suspect authorization might be the sticking point for intervals?