The author reflects on their experience working with other veterans to assist in the evacuation of people from Afghanistan during Operation GTFO. They used various open-source tools, such as Uber's Hexagonal Hierarchical Spatial Index (H3) and Folium for visualization, to analyze location data and find safe evacuation routes. The author also shares a Python module they created to automate some of the tasks involved in density analysis using H3. They emphasize the importance of open-source technology in enabling collaboration among veterans and other supporters in such missions.