Thank you again Norbert, So my general advize would be to start small. Think about the central
concepts of CQRS and what you need from. If you are looking at the java API and do a solution in smalltalk you just need some confidence that you didn't forget a ton of stuff only because it is much smaller and easier :)
I agree with you and this is the reason why I was looking for an Smalltalk framework to build CQRS webapps.
I really like the topic. If you have other inquiries or insights regarding this topic I'm always interested. If you can tell what you need I can think about what of the stuff I did might be useful to others.
Unfortunately, what I really need is to implement CQRS, or some of its concepts as you said, in a Java-based webapp, but not in Smalltalk. We are suffering severe performance issues and I'm evaluating if the "read model" of CQRS could be a good solution for our problem. Then I thought: why not to look up inspiration in an Smalltalk framework, if it exists :-) Rafael Luque