I have never used Arch. And it may not be worthwhile for OP. But I am pretty confident that I could get that thing working again.
Booting into a rescue live-boot distro on USB, mount the Arch root somewhere, bind-mounting /sys, /proc, and /dev from the host onto the Arch root, and then chrooting to a bash on the Arch root and you’re basically in the child Arch environment and should be able to do package management, have DKMS work, etc.














Well, if vinyl could come back, I suppose MiniDiscs can too.