The COVID-19 Omicron variant was causing a new wave of infections and, because of school and life disruptions, students were struggling with learning loss and a decline in mental and emotional health in 2021. Against this backdrop, FHI 360, an organization whose education initiatives aim to dismantle obstacles and give students the tools they need to succeed in school, designed and launched the District Summer Learning Network. The network helps districts pivot in their approach to summer learning as a strategy to mitigate the pandemic's worst impacts by igniting learning and improving student wellbeing. The District Summer Learning Network has helped over 125 districts across the U.S. design and implement high-quality summer programs that accelerate learning and improve student well-being. In designing professional learning, the network's goal was to help districts shift their thinking about what summer learning could be and give them tools to create high-quality, evidence-based programs that benefit young people. In this article, the authors examine the challenges of starting the network and the elements they found critical for facilitating both technical solutions implementation and adaptive problem-solving in support of high-quality summer learning.