The Advanced Technology Development and Mitigation (ATDM) program within the Exascale Computing Project (ECP) shows that the best way to support the mission is through open collaboration and a sustainable software infrastructure. Although ATDM primarily supports NNSA’s traditionally closed mission of national security, LLNL’s ATDM Software Technology (ST) project contributes key open source components of a full-featured, integrated, and maintainable software stack for exascale systems that will impact both the ECP and the broader HPC community. A new article on the ECP website describes the project’s goals and technical focus areas in an interview with Livermore Computing division leader Becky Springmeyer and ATDM ST deputy lead Todd Gamblin.