Forking Ubuntu Mate (Derivative)



First off I’d like to say Happy New Year (sorry that’s late), to the Ubuntu Mate community!

As this is my first post here, I hope I’ve submitted it into the correct area. I was wondering if anyone could possibly point me into the right direction on where I could read up about linux distribution forking, specifically for Ubuntu Mate, I would like to create a derivative distribution, any feedback and information would be much appreciated!

Thanks, Emmet.