This application aims to show and visualize how much time is spent in each heartrate zone. This will
be useful if you seek to follow the 80/20 rule in endurance/cardio training. The application collects
your data from Strava, so it is required to give authorization for it to be able to access your
activities from the Strava API. The authentication is done by Strava using OAuth2, and no personal
data will be stored by the application.