Very cool. It does get a bit chaotic when there are a number of people keying. If there was the ability to add a narrow filter then it could be usable for a QSO (radio contact)!

There are some other apps designed for having QSOs - VBand[1] and Vail Repeater[2].

Finally if you want to learn to use morse code on the air check out Long Island CW Club[3]

[1]: https://hamradio.solutions/vband/ [2]: https://vailmorse.com/ [3]: https://longislandcwclub.org/