ArcaneMusic developed an admin-configurable Black Market Listings feature for the timothymtorres/tgstation repository, focusing on backend development and server-side logic using the DM language. The work enabled administrators to create custom marketplace listings with adjustable prices, quantities, and categories, enhancing configurability and control. ArcaneMusic also refined the Launch shipping process by introducing a protective energy bubble and reducing shipping costs to zero, which improved reliability and reduced friction for users making black market purchases. The changes were implemented with traceable commits and supported dynamic listing management, demonstrating a focused approach to backend game development within a one-month period.