I originally thought my Synology NAS's auto-extract option would handle it, but after a few days and hanging in the mid-40%s, I knew I'd have to go about it a different way.

I've searched around but can't find anything about stupidly large and high-file-count-multi-part RAR files... I figured you guys may be able to help. I've got a couple of platforms and OSes (Ryzen-based Windows 10 and a couple of Intel Mac options), but I'm not really sure how to go about it.

Do you all have any ideas/tips/resources?