Does anyone have Grails 5.3.2 or close working with Spring Security Saml? I've been trying to get it working with:

api 'io.github.grails-spring-security-saml:spring-security-saml:5.0.0-RC3'

but so far all I've done is a bunch of onion peeling and I don't know how many layers I have left, or if I can get it to work.