This workshop brings together people interested in or working on Plan 9 from Bell Labs, Inferno, 9front or other related systems, platforms, and projects.The workshop will be split into two sections: Talks and a hackathon. The talks will cover the state of the Plan 9 world. The hackathon will improve it. The hackathon will not have talks, tracks, prizes, or a schedule. Instead, you will attend in order to work for a straight stretch of time on the projects that you find interesting, in the same room as the people that you need in order to discuss ideas and get your changes in the source tree.