yes. and the two nuggets I took were looking a Unix pipe as a concurrent processing notation and pointing out that the Unix R&D for great notations (or the communication thereof?) stopped right before splitting, cloning and merging concurrent streams. I've rarely seen scripts nicely setting up a DAG of named pipes. I'm not aware of a Unix standard tool that would organize a larger such DAG and make it maintainable and easily to debug.

assuming pointing at a problem counts as nugget.