To install it (if you have Bitrise CLI v1.5.3 installed on your Mac/Linux) you can run:
bitrise plugin install --source https://github.com/bitrise-io/bitrise-workflow-editor.git
That’s all, you can start using the new workflow editor right on your Mac/Linux!
For more information please see the related #dev:work-in-progress discussion: Workflow Editor "v2" (Open Source & Offline Workflow Editor)
As always, any feedback is really appreciated!!