This is very cool! I was just looking for such a project and ended up using quick-xml since it satisfied my use case (needed to stream certain matches from a big XML file), and I didn't see yours. I love that it is a drop in for libxml2, that must have been a challenging constraint.
I will seriously consider adopting it as long as it supports streaming matches (it seems like it does).
I will seriously consider adopting it as long as it supports streaming matches (it seems like it does).