[keycloak-dev] Add your custom Spi to the Keycloak session?

We are extending KeyCloak with some custom functionality and we like to add an extra org.keycloak.provider.Spi and 'piggy-back' on the KeycloakSession.getProvider mechanism at various places. So we added a org.keycloak.provider.Spi file in the META-INF/services of our provider jar with the Spi implementation we made. But unfortunately, it's not picked up by the DefaultKeycloakSessionFactory, since the classloader that is used in ServiceLoader.load (DefaultKeycloakSessionFactory:56) doesn't have the custom provider jars in scope. Is this intentional? I can understand if you don't want some external Spi 'entering' the KeyCloak system. On the other hand, that's the 'own risk' of the developer creating it. We would like this constraint lifted if possible. If not, is there another way we can get our own Spi's added to the keycloak session without changing any KeyCloak sources? Like using a module instead of a 'plain' provider jar? Are these added modules in scope of the DefaultKeycloakSessionFactory classloader?