Small proxy that provides the course schedule from fitnessfirst.de/kurse as an iCal calendar. Using the filters that are also available on the website, the schedule can also be filtered, for example, to deliver only all aqua courses.
npm i -g @sebbo2002/fitness-fitst-ical-proxy
fitness-first-ical-proxy
http://localhost:8080/ical?club_id=0024&category_id=436
Copyright (c) Sebastian Pekarek under the MIT license.