

Yep, I didn’t know if those were reliable tho or if YouTube had started inserting algorithmic content into playlists yet. And critically, when a playlist ends it should end, not roll right in to other “related” content. And of you’re it’s YouTube-only, so there would be no way to l a playlist that contained other sources.
If I/O speed is important the challenge will be getting lots of nvme slots in a small form factor. Many atx motherboards have bifurcated pci-e slots that can be converted to manage 2 nvme drives at once (in addition to on-board nvme slots) but I don’t know if matx boards do that, so if you wanted 3+ drives that would be the first thing to consider. If you just want a bunch of sata ssds there are more options, but all considerably slower.