Well there is always something to do.
For example, I fancied a boost gauge then remembered I don't do anything simple like '
buy' a boost guage, so ended up buying an ESP32 dev board with a round screen and coding myself up this to connect to my Megasquirt.

Click for a video.
Shows boost, vac, Coolant temp, AFR, Advance and has indicators for Warm up enrichment, Afterstart enrichment, Table switch status and Launch control status.
I added a passthrough mode too so I can connect my phone to it via wifi and MSDroid can connect to the Megasquirt wirelessly for tuning on the go.
Cheers
Stot