Joonas worked on deployment configuration for the HSLdevcom/jore4-ui repository, focusing on refining the rollout process for the jore4-tiamat service. By updating the docker-compose.custom.yml file and commenting out the jore4-tiamat service, Joonas enabled safer incremental deployments and simplified rollback procedures, reducing risk during updates. The approach emphasized clear, traceable configuration management using YAML and Docker, ensuring that changes were well-documented for future onboarding and maintenance. While the work was limited to a single feature over one month, it demonstrated a methodical application of DevOps principles to improve service availability and deployment reliability within the project’s infrastructure.