Cool machine.
Our company used to build 35mm film scanners, called Northlights, for film post-production.
Originally they were driven by SGI Octanes. Then x86 Linux machines. Biggest problem these days would be the interface cards. I believe we were stuck with PCI-X cards for a long time, requiring host machines capable of accepting them.
We still support them, as there are many still in active use on both new films and restoration/archival jobs.
https://www.filmlight.ltd.uk/products/northlight/overview_nl...