Velniro
Open-source licenses
Last updated 20 October 2026
Velniro is built with open-source software. Each component keeps its own license; the full license texts are included inside the app (on Mac in Velniro.app/Contents/Resources and Contents/Frameworks; on Windows under Settings → About → Open-source licenses).
| Component | License | Source |
|---|---|---|
| Velniro | MIT | Included with the app |
| mpv / libmpv (video player) | GPL-2.0-or-later or LGPL-2.1-or-later, depending on build options | github.com/mpv-player/mpv |
| FFmpeg and libraries bundled with libmpv | LGPL-2.1-or-later or GPL-2.0-or-later, plus their own licenses | ffmpeg.org |
| Player libraries as packaged by IINA 1.5.0 | As listed in the bundled license files | github.com/iina/iina |
| aria2 (torrent engine) | GPL-2.0-or-later | github.com/aria2/aria2 |
| Flutter (Windows app) | BSD-3-Clause | github.com/flutter/flutter |
| media_kit and its libmpv build (Windows app) | MIT; libmpv and FFmpeg as above | github.com/media-kit/media-kit |
| anacrolix/torrent (Windows torrent engine) | MPL-2.0 | github.com/anacrolix/torrent |
| Microsoft Visual C++ runtime (Windows app) | Microsoft Visual C++ Redistributable license | learn.microsoft.com |
| Discord Social SDK | Discord's SDK terms; notices bundled in the app | discord.com/developers |
| Rubik typeface (this website) | SIL Open Font License 1.1 | License text |
| Inter typeface (this website) | SIL Open Font License 1.1 | License text |
| Discord logo shape in the app | From Simple Icons, CC0-1.0 | simpleicons.org |
Source code offer
For components licensed under the GNU GPL or LGPL that we distribute in binary form, you can get the complete corresponding source code. Write to legal@velniro.net within three years of downloading Velniro and we will provide it for no more than the cost of providing it. The upstream source for each component is also available at the links above.