OpenTopoMap's hypsometric tint reads "red mountains / green flats" and
looks nothing like the Swisstopo Pixelkarte the proxy hands out
in-region — produced a jarring visual seam right at the CH/LI border.
Thunderforest Outdoors has a muted topo palette + subtle hillshade
that matches the swisstopo tile aesthetic much more closely, so use
it as the abroad `karte` upstream when an API key is available.
- `tile-proxy/build.rs`: reads `tile-proxy/.env` (gitignored) at build
time and forwards each `KEY=VAL` line to rustc as `--env`, so the
key is baked into the binary via `option_env!` and never touched at
runtime. A shell env var of the same name wins over the .env entry
(dotenv precedence). `cargo:rerun-if-changed=.env` +
`cargo:rerun-if-env-changed` force a recompile whenever the value
changes — no stale key cached in the binary.
- `main.rs`: `THUNDERFOREST_API_KEY` read via `option_env!`; foreign
`karte` is Thunderforest Outdoors when set, OpenTopoMap fallback
when absent. Behaviour unchanged for keyless builds.
- `mapTiles.ts`: page-footer attribution credits Thunderforest + OSM
alongside the existing swisstopo / OpenTopoMap / Esri lines so the
attribution stays correct regardless of which build is deployed.
- `.gitignore`: tile-proxy build artefacts (binary, `target/`, `.env`)
moved to the root gitignore with fully-qualified paths so the
source tree isn't hidden by a nested gitignore quirk; the per-dir
`tile-proxy/.gitignore` is removed.
- README + systemd service: documentation refreshed for the new
build-time key flow.
Add tile-proxy/: a small Rust (axum) service behind nginx that serves one
canonical XYZ scheme (/{karte,luftbild,dufour}/{z}/{x}/{y}) and, per tile,
picks the provider by geometry — swisstopo when the tile overlaps a
swisstopo-covered region (Switzerland or Liechtenstein, each simplified +
2 km buffer; tile-bbox ∩ polygon at every zoom), otherwise OpenTopoMap
(schematic) / Esri World Imagery (satellite), with an auto-fallback for
border 404s. Includes the region generator (gen-regions.mjs), a Makefile,
nginx caching-proxy + systemd examples, and a README. Listen address is
env-driven (TILE_PROXY_ADDR).
App side:
- New mapTiles.ts is the single source for the proxy URLs + combined
attribution; HikeMap / HikesOverviewMap / EditMap fetch through
maps.bocken.org instead of swisstopo directly, on-map attribution
controls removed, preconnect + footer credits updated (swisstopo /
OpenStreetMap+OpenTopoMap / Esri).
- Region-aware schematic max zoom (isSwissRegion helper): detail map caps
at z17 abroad and hides the CH/LI-only Dufour layer; overview caps at
z18 when a shown hike is abroad.
- Route-builder: add the satellite layer via the same bottom-right layer
popover as the other maps.
Alexander
