Demo — jukebox

What to look at

The table — TanStack v9, virtualized: the row count is not what makes it slow, the network is.
The four themes — iTunes 8, iTunes 12, Apple Music, and Studio: dark canvas, floating panels, one green. Not palettes — row height, artwork, navigation and density all change with the skin.
Bulk editing — select several tracks, edit once; the modal adapts to what the selection has in common.
The column browser — genre, artist, album, the way iTunes did it.

In the real application every one of these views is a client of the public API, exactly like a third-party front end would be. See the API reference.