It's kismet, perhaps, but I also worked on a project called Arc some 9 years ago before I found - well, Arc. It was a build tool chain written in Scheme, developed by Gregor Klinke. I was at the height of my interest in Lisp and Scheme back then, and I liked the idea of this project for potentially building a Software Configuration Management system oriented to Scheme and Lisp.
Looking back at this project with new eyes, perhaps swapping out Scheme for Arc, I wonder...