# Handoff: Nest-temp question pivoted out — nothing changed in POS-Automation

## Session Metadata
- Created: 2026-07-17 14:12
- Project: /home/claude/bin/POS-Automation
- Branch: master
- Session duration: one evening (2026-07-16)

### Recent Commits (for context)
  - 1dfe8da docs: session handoff — Google Home print button (complete)
  - 93f6c33 feat: simplify Google switch to on-only (state push restored)

## Handoff Chain

- **Continues from**: 2026-06-11-045021-pos-google-home-button.md
- **Supersedes**: nothing — the 2026-06-11 handoff remains the authoritative
  state of the POS briefing feature (complete, live).

## Current State Summary

**No POS-Automation code, config, or deployment changed this session.**

The session started here with "does the Google Home integration allow exposure
of the Nest thermostat temperatures?" — initially assumed to be a
receipt-printing feature. Seth then clarified he doesn't use HA for this and
wanted **SMS alerts when the temp goes out of range**, which is not POS scope.
The work spun off into a new standalone project:

→ **`~/bin/nest-alert/`** — SDM API poller (5-min systemd timer on steel141)
  that texts Seth via the hola-bot Twilio number when the Nest thermostat
  leaves 60–80°F. Live and verified. See its CLAUDE.md, DECISIONS.md, and
  `.claude/handoffs/2026-07-16-nest-alert-live.md` for everything (Device
  Access project, OAuth saga, known SDM limits).

## Important Context

- The POS briefing pipeline (Google Home switch → MQTT → printer) is
  untouched and was working as of 2026-06-11. Do not conflate the
  `google_assistant` integration on the HA VM (push-only, POS button) with
  the new SDM/Device-Access setup (pull, nest-alert project) — they are
  separate Google surfaces and separate GCP projects.
- If a future session wants Nest temperature **on the printed receipt**, the
  lazy path is importing `read_temps_f`/`access_token` from
  `/home/claude/bin/nest-alert/nest_alert.py` (stdlib-only, its .env already
  has the refresh token) — not building anything new here.

## Immediate Next Steps

1. None for POS-Automation. Feature state is unchanged from the 2026-06-11
   handoff; its optional deferred items (print latency, DHCP reservation,
   dashboard None-fields, SA key rotation) still stand.

## Decisions Made

- Nest alerting deliberately kept **out of POS-Automation** (and out of
  hola-bot) — recorded in `~/bin/nest-alert/DECISIONS.md`.

## Potential Gotchas

- None new for this repo. See the 2026-06-11 handoff's gotchas (pytest
  rootdir pin, bridge deploy path, google_assistant 404 red herring).