Worked on the ecmwf/downstream-ci repository to deliver a targeted CI/CD integration for the danu project. Developed a new entry in dependency_tree.yml using YAML to treat danu as a Python package on the master branch, specifying its requirements path, test command, and conda dependencies. This configuration enabled automated downstream CI/CD, reducing the need for manual setup and streamlining build and test workflows for downstream teams. Focused on CI/CD configuration, the work consolidated and documented the integration point, supporting collaboration across teams and ensuring that danu’s dependencies and testing processes are consistently managed within the broader CI/CD pipeline.