Looking for an Open Source Location Tracking App

Hi, I am planning to build my own location history service similar to the google maps timeline.

For this, I need a simple app that sends my current location (and current speed/altitude if possible) to a given HTTPS endpoint every x seconds.

Is there an app that does that? I could also build my own app, but I'd prefer to spend my time on the server-side.

I found a similar feature in OsmAnd (see the image below), but I'd like to not send my coordinates via URL parameters for security reasons.