Andrew Eggleston developed a consolidated Linux system hardening playbook for the UML-Cyber-Security/CCDC_Practice_Infrastructure repository, focusing on standardizing the initial Linux baseline across hosts. He refactored and reorganized Ansible playbooks, removing outdated components and unifying configurations for account management, SSH, auditd, journald, and sysctl. Using YAML and Ansible, Andrew streamlined the deployment process, enabling more reliable and repeatable infrastructure setups. Although no major bugs were addressed during this period, his work improved stability and maintainability, reducing maintenance overhead and clarifying the codebase. This foundational effort supports smoother onboarding and ongoing infrastructure management for future development cycles.