MechWiki local 3D viewer
three.js 0.187.0 — MIT — https://github.com/mrdoob/three.js
occt-import-js 0.0.23 — LGPL-2.1 — https://github.com/kovacsv/occt-import-js
OCCT library, licenses and source/build instructions: https://github.com/kovacsv/occt-import-js/tree/0.0.23
The unmodified replaceable OCCT JS/WASM modules are distributed separately.