Start a TRS-80 emulator when starting X on a RPi?

I have a Pi zero and I have trs80gp on it. I want it to go directly into trs80gp on start up (or X start up).

I can successfully start trs80gp by:

startx trs80gp

but, when I do that,
- I have no mouse and no way to select the menu bar options like FILE EDIT VIEW AUDIO DISKETTE HARDRIVE etc.
- CTRL-ALT-BKSP does not kill the x session. I have to ssh in and kill the PID.


I have installed JWM and it starts but, I can't get it to start trs80gp (with <Include>trs80gp</Include> in the rc file)...
...and when I start it manually, it's SLOOOOOOOW to load.

It's a Pi Zero so I would like the most CPU/Memory efficient way of doing this.

Suggestions?

I've not seen that emulator before. If it can be launched manually from within a graphical session, perhaps you roll it up into a .desktop file and autolaunch that by storing that in ~/.config/autostart/

Otherwise, you might check in with their Discord channel.