Worlds by Train building source offer, version 1

This is a machine-readable offer of the alterations and additional contents used to reproduce the model's combined building database, under ODbL 1.0 section 4.6(b). It contains the exact prepared OSM snapshot, the additional NSW building records, the exact merge implementation, and an offline reconstruction entry point. No network request or npm install is required.

Extract the tar.gz, then run: node reconstruct.mjs
Use Node.js 22.12 or later. The command verifies the exact compact JSON output SHA-256 against manifest.json. Vendored Three.js is 0.185.1 (MIT); its full notice is included. The reference geography.js is the exact application assembly source; reconstruct.mjs repeats its building-only assembly expression. The fetch script records the earlier preparation method; it is not run for reconstruction. The raw Overpass response is not offered: inputs/station-buildings.json is the exact prepared snapshot used by this release.

© OpenStreetMap contributors. ODbL 1.0: https://opendatacommons.org/licenses/odbl/1-0/
https://www.openstreetmap.org/copyright
OSM-derived snapshot and database alterations are offered under ODbL 1.0. Modifications: local coordinate projection, closed-footprint selection, multipolygon assembly, source height parsing, footprint overlap deduplication against NSW records, and supplemental height/source merging. OSM timestamp is preserved in the snapshot.

NSW building inputs: © State of New South Wales (NSW Spatial Services), modified. CC BY 4.0 https://creativecommons.org/licenses/by/4.0/
Source: https://portal.spatial.nsw.gov.au/server/rest/services/NSW_Features_of_Interest_Category_multiCRS/MapServer/9
Copyright: https://www.spatial.nsw.gov.au/copyright
NSW preparation includes local coordinate projection and selection for this model. Source IDs and values are retained. NSW records retain their separate rights. This offer does not relicense all NSW data or certify licence compatibility.

Permission is granted to use, copy, modify and distribute the included project merge and reconstruction code to reproduce and use this data offer. This grant does not cover the whole application. Third-party rights remain as stated above.
