First snapraid sync

I've just migrated a ton of content to my mergerfs pool and am now ready to run my first snapraid. I have read up on keeping things tidy with snapscript and whatnot, but would like to just run it manually for the first time.

That said, I see a way to kick it off (I think) via the GUI but PCs crash, restart, etc, and I'm guessing the first parity build is going to take several days if not more.

Does anyone have a recommendation on how to build the first parity safely? Should I be logging in locally at the server and running a command line job to build the parity drive this first time?

Appreciate any info, sorry if it's a dum-dum question. This will be the first time I actually bothered to have any type of RAID on my server other than JBOD so I'm learning.

Thanks. That's the plan then and I'll run it right on the server instead of thru an ssh.

I'll report back how long a much larger sync takes if anyone cares. It's going to be a lot.