I'm a z80 programmer in that the device I use to program in Axe and Basic runs with a z80 CPU, yes.
I am fluent in TiBasic for the 83/84 series. I never have any need to write anything, though, but I do love to test myself in challenges. So, if you need Basic help, I'm here! Or if you need help doing random crap
Only thing I can't get working well: big integer calculation, or Pi to any respectable number of digits in this lifetime.
I'm going to be gone for a week on vacation.