Maxim Dounin announces the freenginx project.
As such, starting from today, I will no longer participate in nginx development as run by F5. Instead, I’m starting an alternative project, which is going to be run by developers, and not corporate entities:
It looks to be similar. I’m not sure how trivial it is to add this. For nginx it’s basically built in. You just give it the Lua code. It’s also pretty capable. You can basically write a whole API back-end in it, which is pretty good for small APIs or functionalities, like an image resizing API.