DSM on a Single SSD?

Just got delivery of the DS923+ so now figuring out the drives and other add-ons to order. I was curious if I could first put in an SSD like a Crucial MX500 and start up the NAS, and finish installation of DSM. And once that’s done, add the rest of the drives (had 3x Seagate Ironwolf Pro 18TB in mind) as a separate volume....