Probably the same way they shell pumpkin seeds. :)
I have no idea what that is either. But given that pumpkins are loaded with seeds and pepitas (shelled pumpkin seeds) go for around $5/lb around here, I assume it may not be trivial.
I’ll be interested in the answer....
I think you can buy an automatic sunflower seed sheller for about a million bucks.
It probably works great.
And you can make your money back, as some poster said, for 5 bucks a pound.
Seriously? That was a joke, right?
If so, I’ll bite. You just scrape the pumpkin seeds, which are soft, out of the fruit, sprinkle with oil and salt, and roast them. No shells.