diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/NOTICE.md b/NOTICE.md new file mode 100644 index 0000000..612e0a6 --- /dev/null +++ b/NOTICE.md @@ -0,0 +1,68 @@ +# NOTICE + +This repository contains code licensed under the **GNU General Public License +v3.0** (see [LICENSE](LICENSE)) and material that is **not** covered by that +license. Read this file before forking, distributing, or building from source. + +## What is GPLv3-licensed + +The original work in this repository: + +- `bridge/` — Bridge daemon, MQTT client, web UI, configuration loader, + protocol implementation +- `tools/` — `extract_credentials`, `fetch_credentials` utilities +- `_archive/tools/kx_printer_emulator.py` — printer emulator +- `Dockerfile`, `docker-compose.yml`, `release.sh`, build scripts +- Documentation files (`README*`, `CHANGELOG*`, `_archive/RE/06_docs/*`) +- `kobra_x_orcaslicer_preset.zip` — slicer profile derived from public OrcaSlicer + presets, adapted for the Kobra X + +You are free to use, modify and redistribute this code under the terms of +GPLv3 — including for commercial purposes — provided downstream forks remain +under GPLv3 and source is made available to recipients. + +## What is **not** GPLv3-licensed + +The following items are **third-party material**, included here only for +**interoperability purposes** as permitted under §69e UrhG (German Copyright +Act; equivalent: EU Software Directive Art. 6, US fair-use for reverse +engineering for interoperability): + +- **`bridge/anycubic_slicer.crt`** and **`bridge/anycubic_slicer.key`** — + TLS client certificate and private key extracted from Anycubic Slicer Next + binaries. Copyright remains with Anycubic / their respective authors. + Included solely to enable the bridge to authenticate against the LAN MQTT + broker that runs on a Kobra X printer the end-user already owns. No + ownership claim is made. + +- **MQTT protocol structures, payload formats and signature algorithms** — + reverse-engineered from `Workbench.dll` / `cloud_mqtt.dll` of the Anycubic + Slicer Next application. The protocol itself is documented in + `_archive/RE/06_docs/` for transparency. Any reproduction of code or + protocol details serves interoperability only. + +- **AMS material naming, slot numbering, GCode markers (`EXCLUDE_OBJECT_*`)** + — follow conventions established by Anycubic and the wider Klipper + ecosystem; usage here is purely interoperability-driven. + +## What this means for forks + +If you fork KX-Bridge: + +1. **You must keep this `NOTICE.md` and `LICENSE` file** in your fork. +2. Your modifications and additions to the bridge code, UI, tools and docs + inherit GPLv3 — they must be made available under the same license if you + distribute them. +3. The third-party material listed above is **not** something you can + relicense; it stays under the original (implicit) rights of its owners. +4. Removing the certificates and rebuilding them from your own Anycubic + Slicer installation is the safest path for redistribution if you are + unsure about the §69e situation in your jurisdiction. + +## Disclaimer + +This project is independent, non-commercial reverse-engineering work. It is +**not** affiliated with, endorsed by, or supported by Anycubic Technology +Co., Ltd. or any of their subsidiaries. + +All trademarks are property of their respective owners. diff --git a/README.de.md b/README.de.md index 3b56335..b5d15e5 100644 --- a/README.de.md +++ b/README.de.md @@ -170,7 +170,19 @@ Die Migration läuft automatisch beim ersten Start nach dem Upgrade — keine Ak ## 📄 Lizenz -Interoperabilitätsforschung gem. §69e UrhG — private, nicht-kommerzielle Nutzung. +[![License: GPL v3](https://img.shields.io/badge/License-GPL_v3-blue.svg)](LICENSE) + +KX-Bridge steht unter der **GNU General Public License v3.0** ([LICENSE](LICENSE)). +Forks und Erweiterungen müssen bei Weitergabe ebenfalls unter GPLv3 stehen. + +Die MQTT-Protokoll-Implementierung ist das Ergebnis unabhängiger +Reverse-Engineering-Arbeit zur Herstellung der Interoperabilität (§69e UrhG / +EU-Softwarerichtlinie Art. 6). Drittmaterial im Repository (Anycubic- +TLS-Zertifikate) fällt **nicht** unter die GPLv3 und ist ausschließlich +enthalten, um die Authentifizierung am eigenen Drucker zu ermöglichen. +Details + Disclaimer in [NOTICE.md](NOTICE.md). + +Dieses Projekt ist unabhängig und steht in keinem Zusammenhang mit Anycubic.

diff --git a/README.md b/README.md index 1c25afc..9b84096 100644 --- a/README.md +++ b/README.md @@ -170,7 +170,20 @@ Migration runs automatically on first start after the upgrade — no action requ ## 📄 License -Interoperability research under §69e UrhG — private, non-commercial use only. +[![License: GPL v3](https://img.shields.io/badge/License-GPL_v3-blue.svg)](LICENSE) + +KX-Bridge is released under the **GNU General Public License v3.0**. See +[LICENSE](LICENSE) for the full text. Forks and modifications must remain +under GPLv3 if redistributed. + +The MQTT protocol implementation is the result of independent +reverse-engineering for interoperability purposes (§69e UrhG / EU Software +Directive Art. 6). Third-party material in the repository (Anycubic TLS +certificates) is **not** covered by GPLv3 and is included solely to enable +authentication against printers the end-user already owns. See +[NOTICE.md](NOTICE.md) for details and disclaimer. + +This project is independent and not affiliated with Anycubic.