The tide climbs. The notch decides the pour.
You stand at a cobalt rack of glass bottles. Brine rises one finger at a time whether or not your hand is on the glass. A finger that reaches a neck pours sideways into a neighbor, or sheets down the outside into the tray, according to the notch seated on that mouth.
Neck cards stand in a column. Each face is a black cutout: a step, a fork, a dam, or a siphon. Drag one onto a mouth and the next finger uses that cut. Twist a spent bead into a card's hollow and the next time you open that mouth, the bottle is already wearing the notch. Rub the card that bridges two bottles and they stop sharing a finger; the rubbed piece becomes a new bead, and the freed finger shows on the tide scale.
Roll a finished bottle so residual brine enters the jar. Pinch a bead off the jar's rim when you want to delay or hurry a finger. Smear grit on a pale bottle and it rings one finger sooner. Lift a bottle off its peg and the neighbor that would have poured into it sheets into the tray instead. Press a wax seal to change the gap between fingers, the number of bottles, whether the outer sheet is visible, and whether the next pour is drawn before the finger arrives.
A round ends when every bottle has poured, sheeted, or left its peg. Tip the cylinder and that height is written onto the tide chart on this iPhone. The chart, the seals, and the bottles you lifted stay on the phone with or without a network. There is no account and nothing to buy. The words follow the language of the iPhone.