https://x-jhbuild.sourceforge.io/
This is an attempt to create a generic workbench for software development. A place in your filesystem where you can assemble repositories, use and customize your favorite tools, and have a simplified overview of a project.
X-JHBuild implements some of the concepts of a workbench, while ideas for a full implementation are nurtured within its context.
A more detailed description of what a workbench is and what the advantages are can be found here: Workbench Intro
Also, don't miss the main Wiki page with other possible locations of interest: Workbench Wiki
The X-JHBuild summary page is here: X-JHBuild Summary