Joonas Loppi focused on security and access control maintenance in the tiiuae/ghaf-infra repository, delivering an update to the developer SSH key configuration. He implemented a targeted change by updating his SSH public key, ensuring uninterrupted and secure authentication for developers. The work emphasized auditability, with a single, traceable commit that maintained the repository’s security posture without operational disruption. Using Nix for configuration management and applying DevOps and system administration skills, Joonas addressed routine infrastructure needs. The scope of work was narrow but essential, centering on secure access practices and demonstrating careful, low-impact maintenance of critical authentication mechanisms.