One suggestion - in the demo mode it would be nice if you provide a sample GPX file which you can try right away.
Thanks for your interest and the suggestion. I added it to the demo mode.
There was a bug in the PWA, you need to unregister the service worker in your browser otherwise the App will never update on your device.
One suggestion - in the demo mode it would be nice if you provide a sample GPX file which you can try right away.