I'll start!
I'm Chris Smith, and I started the CodeWorld project. I'm willing to be a mentor for pretty much any project related to CodeWorld, and I've worked on it all. There are some projects where I would not be qualified, though, such as anything that involves working with GHC internals, or UX/UI design with JavaScript. For projects in these areas, I'd definitely be a secondary mentor, but you would also want a mentor with skills in those specific areas of work.