There was a very brief glimpse of the shelters in one of Neemors vids, one a bit hexamid like, no beak/door & with draped netting, the other looked a bit like a slim a-frame style tarp, again with draped netting
Its a long time since I was comfortable on a thin foam pad let alone going without. I see he's another of the UL hikers going for a torch rather than headlight, given I'm allergic to night hiking I think I'll stick with my e-lite.
During thru-hiking season here it gets dark so late that actually hiking in the dark is the exception. I know folks who get by with just their phone. You guys up there don’t need them at all in summer when you have that odd nice night.
For walking at night a torch held low gives better definition than a headtorch. If I'm doing dark night micronav I'll always have a bright handheld spot for occasional use and a less bright headlamp, I find it more useful on rough ground.
But for most purposes a headtorch is more practical. Especially in camp. A piece of shockcord on a microlight is minimal weight.
Or a Petzl E-lite ( neither great for off trail walking though...)