This models specs
CPU: StarFive JH7110 (Star64 by Pine64)
GPU: Imagination Technology BXE-4-32
Ram: 8G
HDD: SD Card
OS: star64-image-plasma
PI CALC TIME: (time echo “scale=4000;a(1)*4” | bc -l) 40.290s

Fun project here. Old hollowed out TRS80 case with new components sporting a RISC-V board.

Usability notes: It works! Pretty modern, easy to type on, current apps, low power consumption. What’s not to like? Biggest usability issue is the 1024x768 12” monitor I used. Pretty low resolution for some apps. Keyboard is a Master Keys Pro by Cooler Master.