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The remaining gap to a single service is the DYMO M10 postal scale (USB HID
0922:8003/8004, ~130 lines of the Node daemon) -- everything else the extension
calls is already served. Scale was not plugged in today, so note that any port
written before it is connected is untested.

Also records the wanted Logitech C920 + cutting-mat dimension capture, and what
still works with the Urovo unplugged (previews, label layout, Dymo, Chafon).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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type-two 2026-07-22 16:53:18 +10:00
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@ -222,5 +222,30 @@ geometry, density, one-pass timing — is documented above and identical.
- [ ] Resolve the `:7790` collision between `mac/daemon.py` and the Node `rfid-daemon`
(both bind it; the Node one owns the Chafon write path, scale and inventory routes).
---
## 9. Next session — pick up here
**The one thing standing between us and a single service.** The extension calls only six
endpoints: `/status`, `/write-tag`, `/read-tag` (all served by `mac/daemon.py`) plus
`/weight`, `/scale/start`, `/scale/stop` (Node only). Port the **DYMO M10 postal scale**
— USB HID `0922:8003`/`0922:8004`, ~130 lines around `index.js:1068-1200` — and the Node
daemon retires for the extension's purposes: one process, one venv, one launchd agent.
⚠️ The scale was **not plugged in** on 2026-07-22, so any port written before it is
connected is untested.
**Also wanted:** a **Logitech C920 over a cutting mat** to measure record/sleeve dimensions
(the mat grid gives the scale reference). Not started.
**Resuming without the Urovo attached** (it stays at the shop): the daemon degrades
cleanly — `GET /devices` reports `present: false` per device rather than failing, the
Dymo and Chafon paths are independent, and `mac/chafon.py` runs standalone. Label layout
work needs no hardware at all: `GET /preview?size=large&artist=…` renders a PNG, and
`python label.py small large` dumps both profiles to `/tmp`.
**Don't re-litigate:** the RFID encode is proven (Urovo wrote, Chafon read back
independently); the EPC scheme is settled and matches the Node daemon; the Dymo needs no
driver. All three are documented in `mac/README.md`.
See also the shop's memory notes: `urovo-d812r-ribbon-fix`, `urovo-d812r-rfid-label-gap-issue`,
`urovo-d812r-pet-labels-not-thermal`, `urovo-windows-print-encode-daemon`, `chafon-h102-windows-hid-mode`.