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trails/openspec/changes/hiking-foot-profile/proposal.md
Ullrich Schäfer 5dd4968626 docs+openspec: prior-art research (Organic Maps, Endurain, wanderer) and 15 proposals 
Add docs/inspirations.md as the durable record of the 2026-07-05/06
prior-art research — per-project learnings with source paths, canonical
credit lines, and the changes each spawned — and extend the
acknowledgment lists in philosophy.md/architecture.md (Organic Maps,
Endurain, wanderer).

New OpenSpec changes (proposal/design/specs/tasks each):
- Organic Maps: elevation-profile-hardening, gpx-parser-robustness,
  hiking-time-estimate, poi-index, hiking-foot-profile
- Endurain: account-export, activity-duplicate-review,
  fit-parsing-hardening, activity-locations, self-hosting-guide,
  activity-privacy-controls
- wanderer: federation-hardening, link-share-tokens
- credits-page (user-visible acknowledgments)

Updated in-flight changes with wanderer prior-art sections:
route-federation, route-discovery.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 07:23:00 +02:00

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Why

The planner's "Hiking" option (de: "Wandern") is BRouter's trekking profile — a trekking-bike profile. Users planning a hike get bicycle routing: stairs and demanding footpaths are penalized or avoided, cycleways are preferred, and bicycle access rules apply, so the "Hiking" route is often not the route a hiker would (or could) take. trails.cool is an outdoor platform whose flagship use case is hiking; the routing should actually route on foot. This also unblocks the hiking-time-estimate change from being keyed to a mislabeled profile.

What Changes

  • The BRouter image guarantees a foot routing profile named hiking (from the pinned BRouter release's hiking profile, renamed; a vendored community foot profile is the fallback if the release doesn't ship one — verified during implementation).
  • The planner profile selector gains hiking (en "Hiking", de "Wandern") and the existing trekking profile is relabeled honestly (en "Cycling (touring)", de "Radfahren (Touren)"). Available profiles become hiking, trekking, fastbike, safety, shortest, car; default stays fastbike.
  • @trails-cool/map-core profile mappings move to the right sports: the waymarked-hiking tile overlay and hiking POI defaults (shelter, viewpoints) key on hiking; trekking gets the cycling defaults (waymarked-cycling, bike infrastructure) like the other bike profiles.
  • Existing sessions are untouched: Yjs documents storing trekking keep routing exactly as before — only the label they see changes.
  • The not-yet-implemented hiking-time-estimate change is retargeted to gate on the hiking profile (its artifacts are updated as part of this change's scope).
  • Not in scope: SAC-scale-aware routing options (e.g. "avoid alpine routes"), per-country profile variants, and changing the demo bot's trekking usage (its synthetic routes remain plausible bike rides).

Capabilities

New Capabilities

Modified Capabilities

  • brouter-integration: the "Profile selection" requirement's profile list gains hiking, and a new requirement pins the availability and foot semantics of the hiking profile in the BRouter image.

Impact

  • docker/brouter/Dockerfile — provide/rename the foot profile as hiking.brf; the existing WayTags patch loop must apply to it (deploys via cd-brouter.yml to the dedicated host).
  • apps/planner/app/components/ProfileSelector.tsx — profile list + order.
  • packages/map-core/src/poi.ts — profiles arrays and profileOverlayDefaults remapping.
  • packages/i18n — en/de label additions and the trekking relabel.
  • e2e/integration.test.ts — add a hiking-profile routing case alongside the existing trekking ones.
  • openspec/changes/hiking-time-estimate/ — gate updated from trekking to hiking.
  • No schema/API changes; the BRouter proxy passes profile names through unchanged.