Ralf focused on improving testing infrastructure and documentation across opencloud-eu projects. In opencloud-eu/reva, he refactored the test setup to use an in-memory registry, removing reliance on environment variables and increasing test reliability and determinism. This approach streamlined continuous integration workflows and reduced flakiness in Go-based test suites. Later, in opencloud-eu/docs, Ralf authored comprehensive OpenID Connect integration documentation, detailing environment variables, automatic role assignments, and client configuration for OpenCloud applications. He incorporated configuration management best practices and provided guidance for Keycloak integration, enhancing onboarding and security. His work demonstrated depth in Go, documentation, and identity and access management.