Worked on the haggis78/Nexus repository to expand sandbox asset resources, focusing on improving UI prototyping and onboarding efficiency. Over two months, delivered two feature updates by adding a set of image assets, including both general sandbox images and a character avatar pack, to support richer frontend development and consistent branding. Emphasized repository hygiene and traceability by linking each asset addition to its context, without altering application logic or runtime behavior. Utilized Git for version control and asset management, with workflows supporting rapid UI iteration. No bugs were addressed, as the work centered on non-code enhancements to the development environment.