The joys of working on an open source project that interfaces to obscure, sometimes obsolete hardware: regression testing is almost impossible.

Sure, we can catch regressions in the GUI easily. But if a big fix to a driver breaks things for a different scope supported by that driver, there's no way to test without having one of those scopes around to validate things against.

And there's way too many models of instrument out there for building any kind of CI cluster to be practical in a reasonable amount of space or budget.