It looks like the App Gallery is coming soon! - Fitbit Community
FitBit : How To Install New Apps (Versa | Versa2 | Charge 4 | Ionic) - YouTube
Access Fitbit Data via API through Postman | by Anthony Westmoreland | Analytics Vidhya | Medium
GitHub - hannarakhsha/Fitbit-Watchface: Minimal Activity FitBit watch face that allows cycle through activities on home screen. As well as showing battery level, time, date, and heart rate at all times.
Configure the Fitbit Connector
App, App, and Away! The Fitbit App Gallery is Open for Submissions