How the studio set works
Own engine
A forked copy of shared/ lives in studio/shared/. Change rounds, totals, payment or the motion helpers here and the twelve upstairs never see it.
Same slugs
A copy sits at /studio/sumi/, the original at /sumi/. Promoting a winner is moving the folder up a level — no renaming, no dead links.
Borrow freely
Anything from the other eight can be lifted in — a component, a screen, a whole flow. Copy it into the studio copy and rewire it there.
One deploy
Both sets ship together. / is the reference, /studio/ is the work in progress — open them side by side on a phone to compare.