Retropie - Orange Pi Zero 2w

It has been two weeks since I have started and I’m trying to think on what to improve to get closer to the final goal.

[Solved] I have noticed that if I run the device on my 1600:900 monitor, it is more likely to crash upon exiting ROMS. I have little to no issues on my 1360:768 TV. I will try my small refurbished old laptop monitor to see how that runs. 720p seems to hit the sweets pot and works fine, lower is also possible.

[Solved ish] I still have Mupen64plus running on 16:9 aspect ratio. I’d prefer it to run on 4:3 too.
The best solution is to set the monitor to 4:3 when launching N64, alternatively set mupen64plus.cfg resolution to your screen size 16:9. It will then adjust to 4:3 ( It will screw up the size when changing monitor with different screen resolution)

[Solved] I would like to eventually load directly into Retropie from turning on the device. Don’t know yet how this can be achieved.
I would like to keep the possibility to get back into Dietpi OS. Can I just force it to start at launch like I’m starting Pulse audio at launch?
Created a script to force opening a terminal and launching emulationstation through the terminal, this script is launched via the Xfce autostart optionmenu