So good to see libraries made to be compatible with both React, Preact and Inferno. Unless Facebook changes it's React open source license, this will probably become standard for most of the libraries made for React.
I made this library a while ago, long before all this hype about React's license (which was with the questionable clause from the beginning). I added support for Preact as I liked the minimalistic style of Preact, used it in my own projects and Jason was really responsive solving Preact's compatibility issues. Later on, Dominic asked if I want to add support for Inferno, which I did. I really love that there are different library implementations with compatible API, so you can choose a proper solution based on its pros/cons.