BidWright piping editor: https://github.com/braedonsaunders/bidwright
AGPL-3.0-only. Original piping symbols and application workflow.

MLightCAD viewer 1.7.4 / data-model 1.15.1: MIT (MLightCAD-MIT.txt).
DWG reader @mlightcad/libredwg-converter 3.15.1 and libredwg-web 0.7.15: GNU GPL v3; upstream sources https://github.com/mlightcad/realdwg-web and https://github.com/mlightcad/libredwg-web.
DWG writer GNU LibreDWG 0.14: GPL-3.0-or-later. Licence, corresponding source archive and complete build wrapper in ../dwg-export/.
EMF converter: Apache-2.0 (EMF-Apache-2.0.txt, EMF-NOTICE.txt).
Noto Sans Regular: SIL Open Font Licence (NotoSans-OFL.txt).

Upstream notices in distributed JavaScript and repository source are retained.
