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trails/openspec/changes/credits-page/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

trails.cool owes its shape to other open projects — BRouter, bikerouter.de, brouter-web, wanderer, and (as of the 2026-07 research) Organic Maps and Endurain — and builds on data that carries attribution obligations (OpenStreetMap; GeoNames once activity-locations lands). Today that acknowledgment lives only in docs/philosophy.md, invisible to users. A user-visible credits page makes the acknowledgment real, gives data attributions a durable home beyond the map corner, and matches how the projects we admire credit their own inputs (Organic Maps' copyright.html, its required-credit NOTICE).

What Changes

  • New /about/credits page on the Journal with three curated sections:
    1. Inspirations — the projects from the philosophy doc's acknowledgment list, each with a link and a one-line "what we learned from them".
    2. Data — OpenStreetMap (© OpenStreetMap contributors, ODbL), BRouter routing segments, tile providers, and a slot for GeoNames (CC-BY) when activity-locations ships.
    3. Built with — a short curated list of load-bearing open-source components (BRouter, Leaflet, Yjs, Fedify, PostGIS), not a generated dependency dump.
  • Footer link "Credits" in both apps (planner links to the Journal page, same pattern as the legal links).
  • The page and docs/philosophy.md's acknowledgment list are cross-referenced so they stay in sync (comment in both pointing at the other).
  • Localized (en/de) like every user-facing surface.
  • Not in scope: an auto-generated full dependency-license inventory (can be a later licenses page if ever needed), donation/sponsor listings.

Capabilities

New Capabilities

  • credits-page: The user-visible credits & inspirations page — content sections, localization, and its footer entry point.

Modified Capabilities

  • legal-disclaimers: the "Footer legal links" requirement gains the Credits link in both apps.

Impact

  • apps/journal: new route about.credits.tsx (+ registration in routes.ts), Footer link.
  • apps/planner: footer variant gains the absolute link to the Journal page.
  • packages/i18n: footer label + page strings (en/de).
  • docs/philosophy.md: cross-reference comment.
  • activity-locations and poi-index tasks that mention "journal credits" now have their concrete target surface.