tests/frame-container/frame-image.sh extracts rootfs-A from Valve's Frame
recovery image (steamdeck-images.steamos.cloud/recovery), mounts it read-only
with a throwaway writable layer and starts the image's own sshd, so the iPhone
app can pair with and run its server on the real SteamOS for Frame userland.
Verified: password pairing then key login in the image's sshd log, the power
password check through the image's sudo, status reading SteamOS 0.3.0.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Valve publishes no Steam Frame OS image, so tests/frame-container builds the
Frame's SSH surface on Valve and Collabora's Holo Core aarch64 base: a
steamos user with a password and sudo, OpenSSH with keys and passwords,
Python, and a systemctl that only records requests.
Against it from the Simulator: password pairing, the host-key pin, the power
password check. Found and fixed: a changed host key or a refused login said
"Can't reach the Frame" and retried forever; they now say "Pair with the
Frame again" and offer that. The server's key rejection now says the header
may be wrong, not only missing.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
