Love the PICO-8 platform.
I just got a perfect handheld to run pico-8 games.
It's a RGB30 with a new metal shell and with a modified system programmed for pico-8 only. Hope you like it!

Damn, I admire the commitment to remove two buttons to get the "original" layout. What does the "Select" button (top left next to the dpad) do?

It does look very clean. Given the choice, though, I always pick using the left and bottom buttons as their layout matches the orientation of my thumb and I can just rock the end and first joint back and forth, instead of the bottom and right buttons so I have to constantly move it side to side.