Ah, yes, but of course! There's actually a readme inside the pk3 that says you can use and modify it as much as you want. You must realise my work was only, let's say experimental, and not aiming at a project of my own. It was just a captivating idea. So, please use it if you find it useful. Or course I'd be happy if you mentioned me in your future readme, but I don't require even that...