ELECTHRONE — THIRD-PARTY NOTICES
=================================

This site includes third-party work. The notices below are reproduced as the
respective licences require.


1. Board artwork on the Services section (/pcb.webp)
----------------------------------------------------
Derived from the PolarFire SoM hardware design by Antmicro.

    Copyright (c) 2023-2025 Antmicro
    Licensed under the Apache License, Version 2.0
    https://github.com/antmicro/polarfire-som
    https://www.apache.org/licenses/LICENSE-2.0

MODIFICATIONS: the image published here is not Antmicro's own artwork. It was
rendered by Electhrone from the project's board data and then altered — the
silkscreen legend block was cleared, the pad finish was rendered as ENIG, and
the copper and solder mask colours were changed. Antmicro does not endorse
Electhrone or this site.


2. Gerber viewer libraries (/vendor/)
-------------------------------------
tracespace — pcb-stackup, whats-that-gerber
https://github.com/tracespace/tracespace

    MIT License
    Copyright (c) 2015-present, Michael Cousins and contributors

The published browser builds are used unmodified. Their full licence text, and
the notices of the libraries bundled inside them (buffer, escape-html — both
MIT), sit alongside the bundles in /vendor/.

fflate — ZIP archive reading
https://github.com/101arrowz/fflate

    MIT License
    Copyright (c) 2026 Arjun Barrett

Used unmodified; licence text alongside the bundle in /vendor/.

libarchive.js — RAR and 7-Zip archive reading (/vendor/libarchive/)
https://github.com/nika-begiashvili/libarchivejs

    MIT License
    Copyright (c) 2018 ნიკა

It embeds two further works, used unmodified:

    libarchive — https://github.com/libarchive/libarchive
    BSD 2-Clause License

    Comlink — https://github.com/GoogleChromeLabs/comlink
    Copyright 2019 Google LLC, Apache License 2.0

RAR support here comes from libarchive's own independently written reader. It
contains no RARLAB unRAR code, whose licence Debian classifies as non-free.

Everything that turns the parsed files into the rendered board — the packed
layer textures, the height-map lighting, the material model, the measurements
and the interface — is Electhrone's own work.