Gabe contributed to the joernio/joern repository by advancing Java platform compatibility and enhancing file-system capabilities. He implemented support for Java 13+ features, specifically enabling the use of FileSystems.newFileSystem(Path), while carefully aligning build and configuration processes to maintain Java 11 compatibility for end users. This approach allowed the project to leverage modern Java APIs without disrupting existing deployments. Gabe’s work involved close collaboration with other developers and demonstrated a strong grasp of build management, Java development, and software architecture. The changes laid a foundation for future file-system enhancements and ensured a smooth transition to newer Java versions.