The WOSET workshop aims to galvanize the open-source EDA movement. The workshop will bring together EDA researchers who are committed to open-source principles to share their experiences and coordinate efforts towards developing a reliable, fully open-source EDA flow. The workshop will feature presentations and posters that overview existing or under-development open-source tools, designs and technology libraries. A live demo session for tools in advanced state will be planned. The workshop will feature a panel on the present status and future challenges in open-source EDA, and how to coordinate efforts and ensure quality and interoperability across open-source tools.