Platform demo
One API, two scopes. A private item is stored under your employee id and never leaves it. A shared item is one list for everyone who opens this app, and it updates live over the platform's realtime socket. Open this page in a second browser, sign in as someone else, and the difference is visible side by side.
Keyed by the platform to your employee. Nobody else can read or write it — and it has no watch, so a private list never updates live.
One list for every visitor. A write appears in the other tab without a reload, and the sender stamp on a live change comes from the platform, not from the app.