Arsadihar developed and integrated a Pemilu banner feature for the hmif-itb/hmif-app-fe repository, targeting both desktop and mobile platforms. The implementation involved adding a new image asset and linking it to pemilu.hmif.dev, enhancing user engagement for the election event. Using React, Next.js, and TypeScript, Arsadihar ensured the banner displayed consistently across device types. The calendar component was temporarily commented out in both views, reflecting a staged rollout strategy and attention to deployment sequencing. Over the one-month period, Arsadihar focused on frontend development, delivering a single feature with no recorded bug fixes, demonstrating a targeted and incremental engineering approach.