I got started on something like this a couple of years ago, with the intention of eventually using it for tweaking gameplay and art settings, but I only got as

I got started on something like this a couple of years ago, with the intention of eventually using it for tweaking gameplay and art settings, but I only got as far as the web server component: https://github.com/tom-seddon/yhs https://github.com/tom-seddon/yhs In the end the designers and artists seemed to actually like doing the editing on the device directly using cocoa touch widgets, so I didn't take the web server idea any further. My longer-term plans included something like the graphical viewer presented here.