Software Engineer · Ecosyste.ms

Andrew Nesbitt

Andrew Nesbitt is a UK-based software engineer specializing in package management, open source discovery, and sustainability. He created and maintains Ecosyste.ms, a free infrastructure tracking millions of packages across dozens of ecosystems with completely open APIs. Building on his earlier work with Libraries.io, he focuses on making dependencies visible, enabling proper attribution across package ecosystems, and helping researchers and maintainers understand the critical infrastructure that underpins open source. His work centers on solving discovery problems in open source: surfacing hidden dependencies, mapping transitive relationships between projects, and identifying which software truly matters for sustainability efforts. Andrew also created Octobox for managing GitHub notifications and 24 Pull Requests to encourage contribution culture. He’s passionate about package management systems, dependency analysis, and building the data infrastructure needed to support healthier open source ecosystems. When not working on open source sustainability, he’s wrangling his five mini poodles and modifying Japanese sports cars.