One of the main reasons I helped start RotW was because I'd have an excuse to code a website from scratch. RotW is a great project to work on, and I'm not sure I'll ever give up on it completely. (I even just renewed the domain name!) I've always had interest in sharing the code to RotW, and possibly give back to the community a little, but I've been putting it off until now.
Hopefully someone out there will find this code useful. I decided on the GPLv3 license, because it seemed to align with what I'd like RetroCMS to become ideally. I encourange anyone out there with PHP knowledge to give it a try. I'll gladly help anyone who's interested. And if you submit any improvements, I'll gladly add them to the repro, and subsequently to RotW itself.
Check it out:
https://github.com/Billy2600/RetroCMS