Worked on the SAP/jenkins-library repository to enhance the SonarScanner integration by implementing flexible handling of the SONAR_SCANNER_OPTS environment variable. Instead of overwriting existing options, the new approach appends user-defined values, allowing custom scanner configurations to persist across pipeline executions. This update was developed using Go and applied CI/CD and DevOps best practices, including the addition of automated tests to validate the new behavior and ensure proper cleanup of environment variables after testing. The change maintained backward compatibility, reduced unexpected configuration changes, and improved the overall developer experience when configuring SonarQube scans in diverse project pipelines.