Hello! Yesterday I completed my first run at implementing an SFML-powered backend for Guichan. Guichan has been a favorite of mine and so far I haven't seen a fully-working SFML backend for it -- so I made one.
You can find it here on GitHub: https://github.com/zackthehuman/guichan-sfml
Right now it is only the gcn::Graphics portion, I'll be working on getting input implemented in the next few days. I would really appreciate any feedback about this, especially about how it can be improved. I'm hoping that people will find this useful.