While a hike is planned, the planner's map switch offers "Hiking" beside the map, topo and satellite: OpenHikingMap, with marked trails over the terrain. It is a choice of the planner's view alone, like topo: the global map setting, the tour and its days stay as they are. With no tour open, over an import viewed as it came in and for a paddle tour it is not offered, and a choice made earlier falls back to the standard map there. openmaps.fr's tile usage policy is followed: tiles load only as the map shows them, with the browser's Referer, from the server's own caching; no service worker rule keeps them and the 3D flyover's warm-up passes their source by. Its credit and donation link are on the map; the 3D map, whose attribution is folded away under the panel, shows them as a line of its own above its controls. The service is best effort. A run of failed tiles while it is shown marks the switch, with a tooltip and a status for screen readers that say it is not answering and that the tour is untouched; one tile arriving clears it. The tile health the seamark overlay had is now useTileHealth, shared by both. The source is free for non-commercial installs up to 500,000 tiles a month. tours_hiking_map_enabled is an admin switch under Tours (admin tours-hiking-map, audited), on by default, for an install that is commercial or larger to switch off until it has an agreement with the operator. /api/addons carries it as toursHikingMap, true only while Tours is on. Leaflet, GL and the 3D map read one table of the planner's raster bases (tourRasterBases), so topo and the hiking map are drawn the same way. tile.openmaps.fr is on the CSP's connect-src for the GL maps.
@trek/shared
Single source of truth for TREK's API contracts, expressed as Zod schemas and consumed by both the server (request validation + inferred DTO types) and the client (typed requests/responses).
This package is part of the incremental NestJS + React 19 migration (see the "Brownfield Rewrite" board). It is intentionally dormant until modules start importing it — adding it changes nothing for users.
Rules
- One folder per domain:
src/<domain>/<domain>.schema.ts(+.spec.ts). - Domain-agnostic building blocks live in
src/common/. - A route is only considered migrated once its contract lives here.
- Schemas are the source of truth; server DTOs and client types are inferred from them
(
z.infer<typeof schema>), never hand-duplicated.
Consumption (dev)
Both apps resolve @trek/shared to this package's TypeScript source:
- Server (
tsx): viapathsinserver/tsconfig.json. - Client (
vite): viaresolve.aliasinclient/vite.config.ts(+pathsfor the type-checker).
Production packaging (Docker / workspace wiring) is introduced in card F2, when the server first depends on this package at runtime. Until then prod builds are untouched.
Not yet here
The canonical error envelope is finalised in card F5 (it must match TREK's current Express error responses byte-for-byte), so it is deliberately not invented in F1.