The real firmware in WebAssembly. Nothing leaves this tab.
A browser tab is not a signer. A browser extension can read what is on a page, and this machine is online. Learn the flow here, then make the keys that matter on the device.
No camera here, so CAMERA AND TAPS is filled in for you. Dice and taps are real.
Pick it before the signer boots. Change it later in SETTINGS.
Point your coordinator's QR at the webcam.
Drop a PSBT here. The signed one comes back.