This is the actual index the card's ROM browses, live, in the real interface. Keys work like on the machine: ↑↓ (or J/K) move, N/P page, G go to page, L find, 1–8 assign a drive, Return boots. Here that opens the disk booting in a browser emulator at whatisthe2gs.com when that image has a web boot page. On a real Apple II, a CoGS card boots every one of these over the network. Tap a row to select it, tap again to boot.