Carta Operum
Chart
Work
About
Journal
Contact
Journal
Notes from the voyages: what broke, what held, and what I would do again.
All
30
Sync
6
Web
3
Mobile
5
Server
5
Craft
6
Money
5
Date
Bearing
Entry
Watch
9 Jul 2026
Money
Galley
Sizes, extras and a running total
A dish sheet whose price never disagrees with the cart.
1 min
18 Jun 2026
Money
Pinafore
A discount that starts on time
Scheduled promotions decided by the server, not by the clock on a phone.
1 min
27 Apr 2026
Money
LowPrice
Price per kilo, not price per pack
The Per-Kilo Leviathan: a pack on sale can still cost more than a bigger one at full price.
1 min
7 Apr 2026
Money
TicketBus365
Six languages, four currencies, one set of screens
Euro, zloty, koruna and hryvnia at checkout, with no second build of the app.
1 min
17 Mar 2026
Money
Cellar
One cart, many sellers
The Split-Cart Kraken: one payment for the shopper, one order for every winery.
1 min
Here this bearing begins.