it took me exactly 5 seconds to "google" the information you want, don't be surprised if people didn't respond to you, finding information on the internet is a basic skill, if you don't know how to, please learn how to do so...
Fully open-source
Thank you for your 'kind' comment.
For sure I am aware that Orange Fox in general is open source.
But that doesn't mean that this particular project - i.e. "Orange Fox for Poco X3" distributed here - is also open source.
Usually it should be (I guess that Orange Fox is developed under Gnu GPL?), but that's exactly the reason why I'm amazed not to find any
link to the source code (that's what I originally asked for)... - but maybe I'm simply blind and not able to see the link in this thread.
I also thought that here in the xda-developers' forum the source code belonging to a binary always has to be included. Please correct me if I am wrong about this.