The GraphHack is a community-driven project that encourages developers to build projects that benefit others in the Neo4j ecosystem. The theme of this year's GraphHack was "Extending the Graph Ecosystem", and participants were tasked with building something that would be useful to the community. A total of 20 projects were submitted, showcasing various use cases such as web scraping, graph visualization, and data analysis. Some notable projects include NeoWithNic, a tutorial for beginner programmers, and Baryon, a react component for composing organized UI views for Neo4j graphs. The winners of GraphHack will receive compensation, an exclusive invite to the Neo4j Ecosystem Summit, and the opportunity to present their project in DevZone at GraphConnect 2020.