The app gets its texts and the same rules as the menu: unticking Steam
Machine support or the kernel pin unticks it. It can't be turned on from
the app, as each step needs someone at the keyboard to confirm the picture.
bios_enable split into bios_prepare (download, checksum, fwupd check) and
bios_flash; the terminal flow is unchanged. The app: check, warning 1,
warning 2 (type UPDATE, or hold A/OK for 5 seconds), flash, restart.
ui/steamify-ui (PySide6 + QML): menu, review, password, applying and done
screens from the design, scaled to the window. Controller via evdev,
keyboard, TV remote (cecd). steamify.sh --backend status|apply (lib/backend.sh)
drives the same components; sudo asks through an askpass helper.
theupriser