As you might see, my nickname heidi is a German name. I used to operate a HAM radio using Hidy as handle.
The interest of PC led me to quit radio and go on the Internet. At that time, I became more interested in German than English, and changed from Hidy(hai-di) to German heidi(hai-di).
I don't mean I am 'Heidi in the Alps'. It is very close to my first name in pronunciation. :-)