Backdrop CMS support?

Thank you so much for this great module. It's a huge improvement for usability, and a feature I use on many of my sites :)

I am working on a client project for Backdrop CMS that could really benefit from this module, and I would like to port it over. I wonder you would also be interested in supporting a Backdrop version, either actively (I would be happy to add you as maintainer) or passively (help me with questions as they come up, and collaborate on cross-port for bugfixes and new features)? It's your project and you should have the right-of-first refusal on a Backdrop version, if you are so interested.