I’ve had an itch to build a constraint workbench tool for a very long time. Constraint Workbench is my attempt to build a prototype of how I think it should work. The good news is that I think I have at least partially succeeded.
The project has been under intermittent development since April 2015 in my 5 o’clock time i.e. the time I give myself to work on speculative or educational projects between 5 and 6pm Monday to Friday. The sources are hosted on GitHub.