Over 1,000 open-source climate tech projects exist — renewable energy models, biodiversity trackers, carbon accounting tools, water quality monitors. But there is no searchable, maintained directory with health signals, no way to find which projects actively need contributors, and no API for developers to build on top of. The open-sustainable-technology project catalogs these tools in a markdown file, but without code infrastructure, most developers never find it and most projects never get the help they need.