Ambar browser CAD runtime — third-party notices
Audit date: 2026-11-03

This folder accompanies the local browser CAD prototype. It records third-party
attribution and source availability; it is not a deployment receipt, legal
certification, OEM qualification, or approval to change Ambar's licence policy.

The DWG reader/converter uses ACadSharp 3.8.30 and its embedded CSMath/CSUtilities
source. The browser .NET runtime is 10.0.14, built using SDK 10.0.403. Preserve
the complete native/*.txt notices, including .NET's bundled third-party notices,
ICU's notices and the Emscripten 3.1.56 notices. The SDK is a build tool; the SDK
archive is not an application payload or a separately sold Ambar component.

The DXF parser runs with unmodified Pyodide 314.0.7 (MPL-2.0), CPython 3.14.2,
Emscripten 5.0.3, NumPy 2.4.6, ezdxf 1.4.5, fonttools 4.68.0, pyparsing 3.3.3
and typing_extensions 4.16.0. The python/ tree preserves the original package
and bundled-component licence texts. Do not collapse their licence identities
to a blanket MIT label: NumPy and fonttools have additional bundled notices.
The vendored StackFrame JavaScript portion retains its separate MIT notice at
linked/StackFrame-Pyodide-314.0.7-LICENSE.txt, including its original attribution.

Pyodide and its linked Hiwire bridge covered source are available as described
in SOURCE-AVAILABILITY.txt, including local exact-commit source archives. Their
licence and source rights remain MPL-2.0. Ambar's separate CAD/model source remains under its own licence,
copied in ambar/LICENSE.txt and inside the generated Python source bundle.
No proprietary Ambar module is represented as being relicensed by Pyodide.
The linked/ folder also retains the actual Python WASM support notices: Hiwire,
libffi, HACL/KaRaMeL, liblzma, Zstandard, SQLite, bzip2 and zlib. Build recipes
identify these in addition to the Python wheel graph.

Keep this index, inventory.json, SOURCE-AVAILABILITY.txt and the original texts
with any redistributed runtime. Preserve copyright, permission, warranty,
source-availability and other applicable notices. Do not use contributor names
or project marks to imply endorsement. Generated loaders retain their original
licence headers. If a covered source file is later modified, update its source
availability and modification record before redistribution.

ACadSharp, .NET, Python, Pyodide and other names identify upstream software.
They do not imply Autodesk, Open Design Alliance, Microsoft, Python Software
Foundation, Mozilla, component-author or equipment-manufacturer affiliation,
endorsement or certification of Ambar or of an imported drawing.

The narrow recorded shipping exception of 2026-11-03 applies only to unmodified
Pyodide 314.0.7 and its pinned Hiwire bridge; the exact scope and conditions are
recorded in compliance/flag-approvals.json and docs/cad-browser-runtime-notices.md.
It is not general copyleft permission or approval for future runtime upgrades.
No customer DWG has been supplied for this prototype;
the reported approximately 40 MB file is not represented as tested here.