Third-party software and licences
Ciyora OS is proprietary software developed by Ciyora. It includes third-party open-source components, which remain under their own licences. These are the main components, who makes them and the licences they are used under.
Where an app is shipped under a Ciyora name, its About screen says which project it is based on, with the full licence text. We keep every copyright notice, publish our changed source for GPL and LGPL components, and remove upstream names and logos from the apps where the projects ask for that. These projects do not endorse Ciyora.
Ciyora OS is in development, so this list reflects our current plan and may change. The definitive list for each release, with full licence texts and the source offer, is in Settings, About, Legal on the device.
Foundation
| Project | Made by | Licence | Used for |
|---|---|---|---|
| Linux kernel | Linus Torvalds and the kernel community | GPL-2.0 | The kernel, drivers and hardware support |
| Debian | The Debian Project | Per package (free software licences) | Base system packages |
| KDE Plasma and KWin | KDE | GPL-2.0-or-later / LGPL | Desktop engine: compositor, panels and window management, under our own look |
| Qt | The Qt Company and Qt contributors | LGPL-3.0 | Interface toolkit |
| Snapper | openSUSE contributors | GPL-2.0 | Snapshots behind Rewind and safe updates |
| restic | restic authors | BSD-2-Clause | De-duplicated, encrypted off-device backups in Rewind |
Apps
| Project | Made by | Licence | Used for |
|---|---|---|---|
| Chromium | The Chromium Authors | BSD-3-Clause (and the licences of its components) | Ciyora Browser |
| Thunderbird | MZLA Technologies and contributors | MPL-2.0 | Ciyora Mail, Calendar and Contacts (rebuilt without the original trademarks) |
| LibreOffice | The Document Foundation | MPL-2.0 | Ciyora Office (rebuilt without the original trademarks) |
| digiKam | KDE | GPL-2.0-or-later | Ciyora Photos |
| Dolphin | KDE | GPL-2.0-or-later | Ciyora Files |
| Konsole | KDE | GPL-2.0-or-later | Ciyora Terminal |
| Kate | KDE | LGPL / GPL | Ciyora Text |
| Spectacle | KDE | GPL-2.0-or-later | Ciyora Capture |
| Okular and Gwenview | KDE | GPL-2.0-or-later | Ciyora Viewer for PDFs and images |
| Ark | KDE | GPL-2.0-or-later | Ciyora Archive |
| KCalc | KDE | GPL-2.0-or-later | Ciyora Calculator |
| Elisa and Haruna | KDE and Haruna contributors | LGPL / GPL | Ciyora Music and Video |
| Discover | KDE | GPL-2.0-or-later | Ciyora Store app, backed by our own store |
Security and continuity
| Project | Made by | Licence | Used for |
|---|---|---|---|
| KeePassXC | KeePassXC Team | GPL-2.0 or GPL-3.0 | Ciyora Vault |
| KDE Connect | KDE | GPL-2.0-or-later | Ciyora Link phone and PC continuity |
| LocalSend | LocalSend contributors | MIT | Ciyora Move and file drop between nearby devices |
On-device AI and artwork
| Project | Made by | Licence | Used for |
|---|---|---|---|
| llama.cpp | ggml authors | MIT | Runs language models on your PC |
| whisper.cpp | ggml authors | MIT | Speech recognition on your PC |
| Qwen open models | Qwen team | Apache-2.0 | Base language models for Ciya on the device |
| Fluent Emoji and Fluent UI System Icons | Microsoft Corporation | MIT | Colour emoji and some interface icons |
Trademarks
Linux is the registered trademark of Linus Torvalds in the U.S. and other countries. Debian is a registered trademark of Software in the Public Interest, Inc. All other project and product names on this page belong to their owners and are used only to identify their software. Ciyora OS is an independent product, not affiliated with or endorsed by any of them.