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+<!-- codex-wiki-sync:eaea3d97b910c42e932c09c9 -->
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+> Mirrored from `/mnt/DATA/git/pikebacker/docs/10_integrations.md`.
+> Origin: `repository`.
+> Active tasks and changing state belong in Gitea issues; this wiki page is durable project context.
+
+---
+# Integrations
+
+## Routing integrations
+
+Use provider adapters.
+
+### Prototype
+
+- openrouteservice API adapter.
+- Mock adapter for tests.
+
+### Production
+
+- GraphHopper or Valhalla self-hosted adapter.
+- Custom bikepacking profile layer on top of base routing.
+- Offline routing adapter later.
+
+## Map integrations
+
+- MapLibre-compatible rendering.
+- Vector tiles from OpenMapTiles, Protomaps/PMTiles, MapTiler, or self-hosted pipeline.
+- OSM attribution must be visible.
+
+## Accommodation integrations
+
+MVP should use:
+
+- OSM campsites/shelters/huts/hostels/hotels,
+- deep links to search platforms,
+- manual entries/imports for partner datasets.
+
+Later:
+
+- Booking.com Demand API if accepted as partner,
+- direct campsite/hut reservation systems,
+- Warmshowers-style partner/deep links if official access exists.
+
+## Weather integrations
+
+MVP:
+
+- forecast at stage endpoints and exposed segments.
+- warnings for heat, rain, wind, storms, freezing nights.
+
+Later:
+
+- route-time weather simulation,
+- weather-aware rerouting,
+- mud risk after rainfall.
+
+## Device integrations
+
+MVP:
+
+- GPX export.
+
+Next:
+
+- TCX export with course points.
+- FIT export.
+
+Later:
+
+- Garmin Courses API subject to approval.
+- Wahoo Cloud API subject to approval and use-case fit.
+- Hammerhead/Karoo sync if public/partner APIs allow.
+
+## Authentication and partnerships
+
+Do not assume public access to commercial APIs. Use deep links first and provider interfaces so partner integrations can be added without changing the domain model.