Custom ISO Schematron validation for modular Docbook XML with extensive profiling

What are our options for adding custom ISO Schematron validation to our DocBook publishing pipeline ?

The code base is large and extremely modular. We also use extensive profiling to leverage single source reuse as much as possible. The output is currently PDF only, but we might add HTML to the mix next year. Our technical editors use oXygen, and we validate and transform single documents there. In addition, we have a continuous integration pipeline that builds all PDFs when something is committed to Git.

On-the-fly Schematron validation seems doable in oXygen. However, I find it tricky to combine profiling with validating after a commit to check that changes did not break other documents and that business rules are adhered to.

Bergfrid Skaara Dias