Worked on security and reliability enhancements across two repositories, focusing on backend development and system management. In tw93/Mole, implemented cache management and security hardening for the Legcord application, using Shell scripting and JavaScript to automate system cleaning and protect sensitive data. Contributed to nodejs/node by extending the Node.js inspector to support decompression of compressed HTTP responses, enabling better stream processing and performance visibility for developers. Developed comprehensive tests to validate decompression functionality and error handling, and reinforced code review practices. The work emphasized robust application management, improved developer tooling, and delivered measurable improvements in security posture and system reliability.