Code, issues and technical wiki are available at https://github.com/eclipse/efbt/ .
The latest version of the code is in the develop branch https://github.com/eclipse/efbt/tree/develop
GitHub Repositories
You can use the code from these repositories to experiment, test, build, create patches, issue pull requests, etc.
https://github.com/eclipse/efbt - Project repository hosted on GitHub.
https://github.com/eclipse/efbt-website - Project repository hosted on GitHub.