Most Zeebe source files are made available under the Apache License, Version 2.0 except for the broker-core component. The broker-core source files are made available under the terms of the GNU Affero General Public License (GNU AGPLv3). See individual source files for details.
If you would like to contribute something, or simply want to hack on the code this document should help you get started.
This project adheres to the Contributor Covenant Code of Conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to code-of-conduct@zeebe.io.