I have the following mini computers running FX3 with the ALP. They both use a VESA mount so they can be mounted underneath the ALP. These are really small computers. They average about 55 FPS in FX3. I haven't tried Pinball Emporium yet.

• Asrock DeskMini x300 (AMD 4650G + Rx Vega 11) - here is pre-built one I got on Amazon

  https://www.amazon.com/DeskMini-A300W-Desktop-2666MHz-Computer/dp/B0847T9DMY

• Asus PN50 (AMD 4800U + Rx Vega 8)

https://www.amazon.com/ASUS-Barebone-R7-4800U-Processor-DisplayPort/dp/B08GL6D9QF