Files
mikkeli 2ec74270e2 Adopt designed front matter: typed, with staleness on plans
Replaces `type: default` — one value across every document, read by nothing,
so it discriminated nothing. Types are now reference, guidelines, plan and
report, applied to every markdown file with no exceptions for the hub.

Plans carry status and updated, reports carry date. REPOS.md already noted
that plans go stale and reports do not, but nothing made that visible: a plan
from months ago looked identical to one written today.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013kj58Jugkic783b8ZrtTVZ
2026-09-04 14:14:19 +09:00

1.0 KiB

type, status, updated
type status updated
plan active 2026-09-04

Initial plan

Inputs

Source What
Geofabrik japan-latest.osm.pbf, 2.3 GB, or a regional extract
Protomaps daily planet sliced by bounding box, no planet download needed

Start with the region actually driven rather than all of Japan. Geofabrik publishes Kantō, Chūbu, Hokkaidō and others separately.

Steps

  1. Fetch the PBF for the target region.
  2. valhalla_build_admins — driving side and border data.
  3. valhalla_build_tiles — the routing graph, output as a directory.
  4. go-pmtiles extract against the Protomaps planet for the same bounding box.
  5. Record source dates and output sizes in a report under docs/impl/reports/.

Delivery

Out of scope for now — the artifacts are moved by hand. When it stops being tolerable, rsync over the LAN only, never over LTE, with --partial-dir so a transfer survives being cut off. Swap atomically: build beside the live copy, symlink-swap, restart. Never overwrite tiles the server is reading.