Carta Operum

Journal

Notes from the voyages: what broke, what held, and what I would do again.

Date Bearing Entry Watch
SyncGalley The courier's dot Moving a marker smoothly between two GPS fixes that arrive seconds apart. 1 min
MobileLowPrice From barcode to product page Scanning a code and landing on the right product, even when the camera is shaky. 1 min
SyncPinafore A cart that outlives the app Persisting the basket, so that closing the app is not the same as abandoning the order. 1 min
SyncTicketBus365 Where is my bus? Putting a moving coach on a map without making the traveler wait for it. 1 min
MobileCadence Splits and the fastest kilometre Computing a split from raw samples, and what to do with the last partial kilometre. 1 min
ServerCellar Search by wine, grape, region or winery One search box, four kinds of answer, and the ranking that decides which comes first. 1 min
MoneyGalley Sizes, extras and a running total A dish sheet whose price never disagrees with the cart. 1 min
WebLowPrice Search that does not flinch Debounce, cancel and remember: live results that stay calm on a slow connection. 1 min