@chris Interesting; look at the screenshot. This is from running "git shortlog -sne" on duckstation.git (master branch).
Quite a number of authors, and most of the commits aren't even Stenzek.
Therefore, Stenzek is violating the GPL.
I will be doing further auditing, and probably getting in contact with Stenzek myself in due course.
EDIT: I realised Connor Mclaughlin is stenzek. There are still many authors though, whose copyright is being violated.
@chris In other words, the Android app that Stenzek releases, is illegal and could be removed from the Google App store. This is because, for the Android version of DuckStation, Stenzek is withholding the source code even though most of the code in duckstation.git does not belong to him, and was provided under GPLv3 - so, not providing source is copyright infringement.
Someone should report the Android app. A fork is needed; SwanStation for example is a fork of DuckStation and part of libretro.