dsl configuration for access control (constraints & behaviors) and xml generation

Hello, i'm student, my name is Mamadou. too stressed, I'm working on a DSL project for access control applied to the smart home. I have already created concepts for my house (Person, Dad, Mom) and access rules Resource, Action, Subject, Condition but I would like to create access rules and generate them in xml? I'm stuck on the reference link between elements and then the configuration of constraints and behaviors. I've looked at a lot of tutorials but I'm stuck on the MPS setup and generation in xml. I'm asking for your help. Thanks in advance for your suggestions and guidance