Installation was six scripts each carrying its own copy of the container host's
IP, three that had to agree on IDENTITY_TOKEN, and every service URL typed by
hand with a port in it. Any one could be wrong, and the symptom was always the
same and always late: an image that boots fine and then can't reach something,
found after a 40-minute build and a reboot.
Two properties fix that class of bug:
- Nothing is written twice. No script in tools/ contains an IP, port or token.
- Anything derivable is derived. You give the subnet prefix once and one last
octet per host; every address and service URL is computed from those.
THE TWINNED PAIR. container_host.ip_last_octet 12 and llm_host 13 mean the
container host's OLLAMA_HOST *is* http://<prefix>.13:11434 — computed in the
same build, not typed into two files and kept in sync. Move the LLM host to .21
and the container host's Ollama URL follows; change the subnet and both halves
move along with every kiosk's URLs. Neither image can be built pointing at an
address the other isn't using. Both carry the same SMARTHOME_PAIR_ID (a hash of
the config's meaning, not its bytes) so two USB sticks can be checked against
each other later.
validate-config.py runs before every build and refuses to start on an error, so
a mistake costs seconds not an hour. It catches duplicate ports (including the
music_assistant/pantry_vision 8095 clash that Compose can't see because MA runs
network_mode:host — open decision #31), both hosts on one address, duplicate
hostnames across kiosks and audio endpoints, placeholder tokens (checked before
the length check, so padding "changeme" to 32 chars doesn't pass), a private key
pasted where the public one goes, and a kiosk pointed at a disabled service.
build-all.sh is the normal entry point — the images are a set that has to agree
with itself, so building one is the exception. It builds the core pair, every
kiosk, and every audio endpoint including both architectures (amd64 live-build
ISO and arm64 rpi-image-gen img are different toolchains, not one image).
The two new host ISOs install unattended with everything burnt in, including
service env files generated from derived values — which permanently removes the
class of bug that had chores.env shipping IDENTITY_URL=http://127.0.0.1:8097.
setup-container-host.sh and setup-llm-host.sh now read every config value as
${VAR:-default} so the images configure them without editing.
That also makes every ISO a credential: Wi-Fi PSK, tokens, MQTT and HA
credentials are readable by anyone holding the stick. .gitignore covers the
filled-in CoreSystemConfig.json and build-output/.
Tested: 43 config validation/derivation checks and 44 builder checks against the
real code paths with only `lb` stubbed — every generated env file, preseed,
network config, first-boot unit and build stamp is verified, including that a
port collision refuses the build before writing anything. No ISO has been built;
`lb build` needs live-build, root and a long fetch. tools/README.md says so.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Three additions to the thin-client/container-host stack:
- admin-canvas + admin-web (Phase 13): an on-demand display surface for the
sys-admin-llm, mirroring digest-engine/digest-web's write/read split but as
a small always-on token-gated write API instead of a scheduled job. New
"4:admin" thin-client workspace, MQTT button, and duplicated canvas-sdk with
stat/image/video/chart window kinds.
- ESPHome firmware for the Waveshare ESP32-S3-Touch-LCD-1.85C-V2 (Phase 14):
a voice satellite + round-display status screen, evaluated as a DIY
alternative to Home Assistant Voice PE. Media/cover-art always takes
priority over an idle weather/time/date cycle, with a voice-state
visualizer overlaid on top. On-device wake word (micro_wake_word) feeding
the existing Assist pipeline, per-room "media_player_entity_id" wiring
documented explicitly to avoid cross-room bleed. Validated with ESPHome's
own config validator; not yet flashed to real hardware.
- Capture-card ("receiver box") video source selection on the thin client: a
new "5:capture" workspace and HA select that dynamically enumerates
USB/PCIe capture cards (re-scanned periodically for hot-plug), launches
mpv against the chosen one, and unconditionally excludes the gesture-
control camera from the list to preserve its existing no-HA-entity
invariant.
Also fixes a pre-existing bug found along the way: digest-browser's pkill
pattern matched any --kiosk mpv/firefox process rather than its own, which
would have let the new admin-browser/capture-view scripts kill each other's
windows.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WgTwMqiho8DT6ue5S49WBP
Amir Alexander Abdelbaki