On: Slint: Native GUI Toolkit for Rust, C++ or JavaScr...

[salmo]

The FSF party line is that it isn’t anti commercial and the GPL is copyleft, not viral.

But you know…

But dual licensing has been around for decades and I’ve never heard them oppose it.

In practice here, no commercial licensee will want to maintain a fork. All improvements are in the OSS version available to any GPLed software.