00fa15f98f
Satisfies the Phase 1 Definition of Done: - content/ validates cleanly against the frozen schema. `make validate` reports OK: 40 document(s) validated, 0 violations. - Six areas exist, each with an L1 entry: ai-overview, platform-overview, edge-overview, products-overview, history-overview, about-overview. - All six areas have an L2 entry: ai-systems, platform-estate, edge-fleet, products-business, history-engagements, about-narrative. - 28 L3 artefact stubs under content/<area>/l3/. Every artefacts[].url in every document resolves to one of them; the validator proves there are no dangling references (and a deliberately broken copy exits 1). - Every metric value traces to a source line in the evidence notes or the approved metric set in reference/content-map.md (per-metric citations are recorded in the AUD-131 completion comment). - Every document carries confidence and last_verified=2026-10-26; the validator rejects a missing or non-canonical value. - docs/content-redaction.md records the redaction pass: identifiers, third party personal data, credentials and infrastructure detail excluded, with reasons, plus the two numbers that are reported rather than smoothed. Honesty positions held: 3 businesses active (12 adoptions over time), Where-Woof deployed and pre-market, failures kept in (edge-failures), no promotion of in-progress work to delivered. No site code, no templates, no CSS, no rendering (Phase 2).
32 lines
1.4 KiB
Markdown
32 lines
1.4 KiB
Markdown
---
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id: platform-signage
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area: platform
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level: 3
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title: "Artefact — Signage infrastructure · screens as a managed fleet"
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claim: "HDMI-CEC control of power · rotation · mirroring and multi-screen layout — so a display fleet is driven by the platform rather than by a remote control."
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confidence: delivered
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period: "2014–"
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tech: [HDMI-CEC, Raspberry Pi, Python, JavaScript, FFmpeg]
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metrics: [{label: "commercial deployments evidenced", value: "salon · financial services business"}]
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artefacts: []
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public: true
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last_verified: 2026-10-26
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tags: [platform, signage, hdmi-cec, artefact]
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---
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# Artefact — Signage infrastructure · screens as a managed fleet
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**Status: stub.** The CEC command set and a layout diagram land in Phase 7.
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## What the artefact is
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The platform side of the signage product: the codes and control path that switch screens on and off, rotate and mirror output, and lay out multi-screen displays, including synchronised playback across screens in one site.
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## What it proves
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Device-level control combined with fleet management. This is the same skill the edge pages show on small devices, applied to physical displays that other people depend on.
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## Confidence
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`delivered` — this ran in commercial deployments. The product's business status is stated separately on the Products pages, where the honest position is that the software is being rebuilt and three businesses still run it.
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