I suppose you could sell custom binaries, but if you distribute them, you likely have to publish the code. That said, you could maybe run them in the cloud yourself and sell access.
> but if you distribute them, you likely have to publish the code.
Sure, publish the code to the person we sell them to, and no one else. If they want to take the job of rebuilding the binaries themselves, they're welcome to try, but I think the hassle of doing that is what we would be getting paid to do.
Maintaining an online version of Octave seems like another possibility. A couple of people have already built online versions of Octave, and when I approached one of them several months ago, they seemed receptive to the idea to commercialise it.
