cib has a rough framework for lua support, but it has stalled (as expected) on cross-platform build. Not sure if/when that’s going to happen.
Monster jsonification is the next big step and is actually included as part of Galen’s mod manager PR, meaning that once that lands monster jsons should be pretty much complete. Martial arts have/are being moved to the json files, allowing for customization there (though we are still working out some bugs on that front), and from where it is now it should only be a small step to move healing item iuses out to the json files, meaning you can make your own customized healing items.
Yap, custom iuse’s already work in my PR, but between my input PR and everything else I cba to go find a working x-platform makefile with lua support and copy the stuff over. >_>