During their work on the block/kotlin-formatter repository, Felix Herzfeld focused on enhancing the project’s CI/CD infrastructure and artifact publishing workflows. Felix migrated the jar publishing process to Sonatype Central Portal, updating Gradle configurations and environment variables to meet new compliance standards and enable automated artifact deployment. They also upgraded GitHub Actions runners to larger ubuntu-x86 instances, improving build reliability and feedback speed, while simplifying workflows by removing deprecated actions. Working primarily with Kotlin, YAML, and GitHub Actions, Felix delivered targeted improvements that increased maintainability and traceability, demonstrating a methodical approach to DevOps and continuous integration within a focused project scope.