… is the upcoming implementation of XProc 3.0 developed by <xml-project />.
Like MorganaXProc it is written in Java and runs using JVM.
Current status is late alpha with good results against the XProc 3.0 test suite.
A public beta will be released in early 2020 depending on our progress in working on the specifications.
Stay tuned for progress update on Twitter (@xml_project) or xproc-dev mailing list.