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Verdicts are computed per profile from soft and hard limits, and missing data is never presented as accessible. The score stops short of the top because WCAG 2.2 AA claims are partly aspirational (the deck itself marks the audit as to-do), the required video is absent, and the live demo could not be verified.

A real working prototype: FastAPI backend, SQLite persistence, a served mobile-first web app, Docker setup and 143 measured tests, with conflicting and incomplete cases handled in code. The advertised Expo mobile app is only a small API client with no screens, and the demo tunnel was not publicly reachable, so behaviour rests on code and screenshots.

Every observation carries source, date, license and a trust score, conflicts resolve to the more cautious verdict, sample data is flagged, and OSM, GUS BDL and Mapillary are genuinely integrated with attribution and fallbacks. Kraków-specific sources (MSIP, Otwarte Dane) are only planned, which keeps it below the top band.

Ingestion adapters, a pure-function classifier and a repository interface are cleanly separated, and adding a city takes two settings with no code changes. Known limits such as single-instance SQLite and IP-based vote caps are acknowledged with a stated Postgres path.

Five revenue streams are named, the sponsorship mechanic is implemented in code with ethical guardrails, and costs are quantified. But no revenue-side prices exist for subscriptions, audits, city reports or API tiers; the only figures are cost estimates, so the evidence supports the members who found the model unpriced over the one who read it as priced.