You just need one it mode hba sas controller with an external out, and probably a conversion cable from 8088 to netapp's 8436.
You can daisy chain shelves if needed, and I think you can use a second sas card for active failover but I haven't tried it.
I'm using a NetApp ds4246 to hold 24 drives, and it's glorious - embrace the rack mount life. Although my computers themselves are all HP Prodesk minis, which are tiny and amazing, 1 u high and can fit two across on a shelf.
Curl and lynx are pretty cool browsers
I've had good success using heroic for epic and gog games, but lutris gave me some trouble
Yeah, I switched my gaming PC over to popOS and noticed no major issues - steam and heroic just worked as I expected.
If not, there's always the universal three step solution:
Step 1: buy a stick on credit card holder and stick it on your phone Step 2: put in basically any modern credit card Step 3: tap to pay