I built one today.
I damaged an old rim but I wanted to keep the DA hub. I took the whole thing apart and used the spokes off it. The new rim has a little smaller ERD so the spokes wouldn't tension up.
I unlaced it and put in a twist. I managed to do it all during my toddlers nap. I stress relieved it a few times. I retrued again once I mounted the tire. It's fine. I did this 20 years ago with ti spokes. I don't recall it being difficult then either.
I'll check it after a ride a couple more times.
This is a spare wheel to my gravel bike, mounted up with road wheels, and almost exclusively used for dragging the previously mentioned toddler around in a trailer.