I still have to load up a Linux Pitrex sd card and try that, the baremetal sd image I messed around with that and I am honestly mostly just using it for getting high scores on Vectorblade! (1.9M in case you wonder)
If I was a better C programmer and like, you know, smarter, I'd offer help Graham, but I am not! I am a UNIX sysadmin who tinkers in coding, and I know math up to an 8th grade level or something haha.