This Pathways to Enable Open-Source Ecosystems (POSE) project is focused on high demand, widely available, learning resources in emerging fields such as datasets, lab equipment, and educational tools. This project builds upon the Impact Allies Renewable Energy (RE) open-source ecosystem (OSE), which was developed to support students, teachers, and researchers in their work with energy systems. The RE OSE offers free, easy-to-use software, tutorials, hardware schematics, and real-time data. Previously, these resources were either too expensive or restricted to large companies, limiting adoption in K-12 and higher education. By offering free or low-cost alternatives, the platform helps schools prepare students for careers in fields crucial for the growth of the U.S. workforce. Access to its live data sets also enables research that was once only possible in corporate environments to be conducted at universities. The RE OSE has expanded to encompass over 30 resources utilized by more than 80 schools and is supported by major energy and manufacturing companies. This project expands the reach of the RE OSE into additional high-demand areas, including manufacturing, environmental science, and emerging energy technologies. The project also expands capacity for teacher training, provides additional valuable data for research, and increases access for all students to career pathways that strengthen the U.S. technical workforce. This POSE project builds upon the successful RE OSE pl