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Public preview surface
Access PolicyPublic PreviewPrerendered RoutesRoute Stability
Access & Availability
This slice is designed for public participation: prerendered America250 landing pages, quick Home contribution, map handoff, and optional quiz across modern browsers.
Access is broader than login. It includes who can reach the preview, how reliably prerendered routes resolve, and whether navigation remains usable across device and input modes.
Primary Routes
14
Home, authority, map, and support routes mounted
Data Stack
Firebase
Hosting + Firestore + Analytics
Access Policy
Access policy centered on transparency, progressive enhancement, and browse-first availability.
No authentication gate and no account system in public V1.
Firebase-only runtime • no custom backendKeyboard + focus states exist on every button and interactive chip; map markers are reachable via `button` elements.
ARIA labels accompany icon-only controls (zoom, reset, close), and hover-only tooltips fade in with gentle motion.
Future improvements: add meaningful `aria-live` announcements when filters change and detail panel opens.
Availability Notes
The page shell is shipped as static assets, but contribution, map brief, and quiz writes still require a live Firebase connection.
Navigator/hard-refresh on `/map` requires SPA fallback (`try_files … /index.html`) as noted in staging docs.
There is no role-based gating; users can contribute on Home, continue to map, and optionally complete quiz.
Need Help With Access?
For requests beyond the public Firebase-only web scope (for example legal review, retention exceptions, or moderation escalation), refer to governance docs under `docs/ops`.
Public V1 • Firebase-only • No account system
Current Public Summary
Search-Friendly Context
Access policy clarifies public availability, prerendered route stability, and accessibility direction for the US250 America250 runtime.
Is US250 publicly accessible without sign-in?
Yes. The current preview is publicly available and does not require account authentication.
Which routes are included in the active preview?
The active set includes Home, six America250 authority pages, Map Explorer, and support routes for about, request, provenance, privacy, partners, and access.
What accessibility improvements are planned?
Planned improvements include stronger keyboard states, expanded screen-reader labels, and broader contrast audits.
Related Information
These pages reduce ambiguity around the current preview build and tie the America250 topic cluster back to the archive surface, policies, and trust model.