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 where developers can discover what already exists before building from scratch. The result is massive duplication of effort. Teams spend months building solar forecasting models that already exist, or carbon calculators that three other groups have already open-sourced. Meanwhile, promising projects with real potential die from lack of contributors because nobody knows they exist. Climate tech needs what package managers did for software: a curated, categorized, searchable index that connects builders with existing tools and routes contributors to projects that need help most.