Onno van den Troost authored the HIPER APAR Marking Process Documentation for the zowe/zowe-install-packaging repository, focusing on improving release governance for IBM community engineers. The documentation outlined a process for correctly classifying and handling HIPER APARs, ensuring alignment with IBM z/OS standards and the workflow of community build engineers. Onno applied process engineering and documentation skills, using plaintext to create clear, actionable guidance. The work addressed the need for formalized APAR classification, supporting traceability and compliance in release cycles. The documentation was formally signed off, reflecting a thorough approach to ownership and integration within the existing engineering processes.