In March 2021, the Exascale Computing Project (ECP) organized a series of Community Birds-of-a-Feather (BOF) Days to provide an opportunity for the HPC and ECP communities to converge and discuss the latest development efforts. The editorial team led a community BOF on "Cultivating Software Sustainability, Productivity and Quality through". This session was a great success, with over 50 attendees representing academia, national laboratories and supercomputing centers.