FirstModulAR: Open-Source Modular Augmented Reality Interfaces for First Responders

First responders operate in high-pressure environments where decisions must be made quickly and accurately. However, the increasing availability of real-time data presents a double-edged sword; while potentially valuable, the sheer volume of information can lead to cognitive overload, compromising situational awareness and performance. The FirstModulAR project seeks to address these challenges by developing modular Augmented Reality (AR) interfaces specifically tailored to public safety. By working closely with first responders, the project focuses on creating reusable AR modules that improve situational awareness and decision-making across diverse scenarios. This paper provides an overview of the system architecture, the modular design approach, and the integration of AR solutions into realistic public safety scenarios.