Worked on the tboulund-dls/HappyHeadlines repository, delivering comprehensive documentation and DSL updates for the Article and Newsletter services. Focused on clarifying SQL schema references, refining DSL diagrams, and explicitly mapping communication flows between services, the work aimed to streamline developer onboarding and reduce integration ambiguity. Updates included aligning the Newsletter DSL with new interactions involving subscriberService and mailpit, as well as cleaning up placeholders to improve accuracy. Emphasized careful documentation authoring, DSL design, and SQL schema interpretation, ensuring that documentation and code remained synchronized. This approach supported reliable end-to-end testing and facilitated cross-service collaboration within the project.