I wish them the best, but to my knowledge most metal laser sintering setups involve powders so fine as to be both a fairly serious health concern and (depending on the metal) a plausible fuel-air explosive if there's sufficient concentration in the air.
It's not something that instills me with confidence when they self-describe as "scrappy", I'd like to see extra vigilance into the safety concerns.
It appears that its a laser sintererererer, which makes sense. You might have noticed the explosion in adverts for laser welding systems. This means that there 200w+ lasers floating around.
I assume it still needs to be held in an inert atmosphere. Plus getting the fucking thing off the build plate isn't trivial.
I know that at the shop at my old work, they used to use a wire EDM machine to cut the thing from the build plate, then mill it flat again.