Congratulations on your first App! I like the clean design and the simple configuration.

I would love to have a widget that shows my progress in the zones. Ideally this could be configured to e.g. only show progress in Zone 2 if thats my current training goal.

Keep up the good work and thanks for sharing!

„Many writers use this phrase to aggrandize a sentence -- to intentionally make it longer and more sophisticated“

This has to be the perfect example for the usage of the word aggrandize itself.

And perfectly describes a problem that I see all too often with language and people trying desperately to sound smart/clever.

Reminds me of a similar project i did trying to teach robot AI to jump over boxes. Always impressive to see how easy it is to get quick results with a bare implementation of genetic algorithms:

https://maperz.github.io/genetic-ai/