Hello,
On 11/12/2025 14:37, Fernando M. Roxo da Motta via QGIS-User wrote:
On Mon, 8 Dec 2025 22:20:10 -0500, Mustafa Cayci via QGIS-User
<[email protected]> wrote:
[..]
If your software is derived from a GPL code, as stated by the license
itself, your software has to be GPL licensed as well and it has a series
of obligations (described in license) about full source code
distribution.
[..]
Actually, the software licence can be in a GPL-compatible licence ( like MIT ),
and will become GPL when distributed linked with another GPL-licenced module.
But since a QGIS plugin will be distributed linked with QGIS anyway, best is to
directly licence the code under a GPL licence.
Also, beware of GPL2 / GPL3 non-compatibility. To all QGIS users, if you want to simplify
things and stay safe, publish your plugins under a "GPL v2 or later" licence.
Vincent Picavet
HTH
Dear QGIS Team,
I am planning to build a commercial solution for my customers that
uses QGIS together with an object detection model (YOLO). The idea is
to:
Use QGIS as the main GIS platform / interface,
Integrate or call a YOLO-based object detection workflow (e.g., as a
plugin, script, or external service),
Package this as a solution that I sell to my customers (either as a
service or as software they install).
I would be grateful if you could clarify the following points:
Licensing and redistribution
QGIS is licensed under the GPL. Under what conditions may I bundle
QGIS with my own code and distribute it as part of a commercial
offering? If I write a QGIS plugin that uses YOLO (for example, a
Python plugin calling external inference code or a remote API), does
this plugin also need to be GPL-licensed, or can it be under a
different license? Are there specific requirements for how I should
provide source code, notices, or license information when
distributing QGIS together with my own software?
Commercial use and charging customers
Am I allowed to charge customers for installation, customization,
training, and ongoing support of a QGIS-based solution that includes
my own YOLO-based object detection tools?
Thank you very much for your time.
Mustafa
Roxo
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