Nice! No worries, glad I could help :)
Any chance it was „CYB3R HUNT“? I‘ve never played it but saw a post about it here a while ago…
(Here‘s my adjusted version too in case that helps :)
I had the same problem (running Fedora 38), and this post really helped me - it goes through the whole MOK generation/enrollment and then provides a script to automatically sign the modules. I had to make a couple of adjustments to make it work on my system and to automatically load the modules with modprobe , but now I just run /sbin/vboxconfig; /root/bin/sign-vbox-modules each time my kernel gets updated and can use VBox fine again.
Sadly not as AFAIK you need to be connected to the same network as the device (at least on iOS)
Mine was a Raspberry Pi in the early 2010s - I‘d had relatively little experience with computers before and had no idea what a terminal was (or even Linux for that matter, tbh), so it took me a good couple of weeks to even figure out how to reach the desktop… Used Windows most of the time after that, but got back into Linux via Ubuntu a couple of years ago. I‘ve now switched to Fedora as my daily driver and wouldn‘t go back either :)