During February 2025, William enhanced the utfpr/hcf-api and utfpr/hcf-painel repositories by focusing on security and taxonomy model improvements. He implemented Docker container security hardening by introducing a dedicated non-root user and adjusting file ownership, reducing attack surface and improving isolation. William also expanded the taxonomy system by adding a Kingdom entity, updating both backend models and frontend management interfaces using JavaScript, React, and Sequelize. These changes enabled more granular data relationships and improved user-facing taxonomy governance. His work demonstrated depth in system administration and database design, delivering three robust features that strengthened both application security and data integrity.