picoZ80 / pico6502 — Licence Overview
======================================

Copyright (c) 2019-2026 Philip Smart <info@eaw.app>
Project URL: https://eaw.app

This project is dual-licensed. Different licence terms apply to different
parts of the project as described below.


Hardware Designs  (CC BY-NC-SA 4.0)
-----------------------------------
All hardware designs — including KiCad schematics, PCB layouts, Gerber
fabrication files, bills of materials, and mechanical drawings — are
licensed under the Creative Commons Attribution-NonCommercial-ShareAlike
4.0 International License.

  You are free to:
    - Share — copy and redistribute the material in any medium or format
    - Adapt — remix, transform, and build upon the material

  Under the following terms:
    - Attribution — You must give appropriate credit, provide a link to
      the licence, and indicate if changes were made.
    - NonCommercial — You may not use the material for commercial purposes
      without the prior written permission of the copyright holder.
    - ShareAlike — If you remix, transform, or build upon the material,
      you must distribute your contributions under the same licence.

  Full text: LICENSE-HARDWARE.txt
  Online:    https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode


Firmware and Software  (GNU GPL v3)
------------------------------------
All firmware and software source code — including C sources, PIO
programs, header files, and build scripts — are licensed under the
GNU General Public License, version 3 (or, at your option, any later
version).

  Full text: LICENSE-SOFTWARE.txt
  Online:    https://www.gnu.org/licenses/gpl-3.0.html


Documentation  (CC BY-NC-SA 4.0)
---------------------------------
All documentation, user guides, and technical manuals authored by the
copyright holder are licensed under CC BY-NC-SA 4.0 (same terms as the
hardware designs above).


Third-Party Components
----------------------
The following third-party libraries are included and retain their own
licences:

  Component                          Licence
  ---------                          -------
  Z80 CPU emulator library           GNU GPL v3  (Manuel Sainz de
    (redcode/Z80)                      Baranda y Goñi)
  Raspberry Pi Pico SDK              BSD 3-Clause
  TinyUSB                            MIT
  cJSON                              MIT
  ESP-IDF framework                  Apache 2.0
  Bootstrap 4 (web interface)        MIT


Trademark and Name Protection
-----------------------------
The names "picoZ80", "pico6502", and "engineers@work" and associated
logos are trademarks of Philip Smart. You may not use these names or
logos to promote or endorse derivative products without prior written
permission. See the NOTICE file for full details.


Commercial Licensing
--------------------
Commercial use of the hardware designs (manufacturing for sale,
inclusion in commercial products, etc.) requires a separate commercial
licence from the copyright holder.

If you are a manufacturer or distributor interested in producing picoZ80
or pico6502 boards, or derivative hardware, for commercial sale, please
contact:

  Philip Smart <info@eaw.app>

Personal, educational, and hobbyist/club use is always permitted under
the terms of the applicable open-source licences above.
