Healthcare workers in Indo-Pacific nations, such as Palau, Samoa, and Fiji, face challenges in coordinating health supplies and data due to geographical dispersion and inefficiencies, a situation exacerbated by crises like the COVID-19 pandemic, highlighting the need for integrated electronic health systems. Tupaia, developed by Beyond Essential Systems, is a platform tailored for remote settings, offering data aggregation, analysis, and visualization, notably through interactive maps using GL JS, aiding various stakeholders from healthcare workers to donors in tracking medicine distribution, outbreaks, and service delivery. The platform, initially aimed at geolocating health facilities, has evolved to support immunization programs, disaster response, and disease surveillance, integrating data from multiple sources such as DHIS2 and custom apps like MediTrak and Tamanu. Samoa employs Tupaia for managing its COVID-19 vaccination rollout, utilizing the Tamanu app for field data collection that is then visualized to monitor coverage metrics, while Tupaia's flexibility in data integration, particularly with Mapbox GL JS maps, allows for comprehensive visualization of diverse data layers, enhancing decision-making capabilities across various health initiatives.