Quarkus with SPI

[akil-rails]

We have a requirement in our app to let our customers implement an SPI to change the default behaviour of the app - for example, our customers can implement integration to their internal Email APIs instead of the public APIs that we use ( AWS SES ) . I see that keycloak with the Quarkus distribution offers something similar . Is this the best way to do this or are there other alternatives ?

We could ask customers to change our code / pom and package their code as extensions , but would rather have them not touching our code at all.