Alex Rubio contributed to the CSA_Combined_Frontend_Fork repository by expanding the in-game shop with five new purchasable items, each featuring defined costs and custom visuals. This work enhanced monetization readiness and added gameplay depth. Alex also improved content cleanliness by removing unnecessary HTML tags from the Cookie Clicker markdown file, reducing visual clutter while preserving gameplay integrity. Throughout the month, Alex maintained repository hygiene by documenting and managing no-op placeholder commits, ensuring a clean and traceable commit history. The work leveraged CSS, HTML, and Markdown, demonstrating a focus on frontend development, documentation quality, and maintainability within a short project period.