Yeah, it's just floating. Once you get a decent amount down, it stops moving around much. Having the fridge on it helps.
I had a gap at the door that was exactly the width of a slat, so instead of cutting one off the rest of that wall, I cut up a couple extras to fill it in. Just need to do the corners
Plan for the rest is a clear finish t&g pine for the ceiling and painting all the walls (open framing) in semi gloss white.
If this ever turns into more than storage/changing space, I can insulate, drywall and add an a/c at that point.
Conduit is all roughed in, just need to get a couple spools of thhn and a roll of NM-B, then I can insulate and close the ceiling