No offence intended but There seems to me to be a whole lot of accretion in the non language part of GNU APL. Useful as it may be to certain people I don’t think it’s in the elegant spirit of APL.
What used to be a nice clean, simple and easily comprehended project is now suffering from encrustations that everyone is burdened with. Personally it would be nice to have a basic package that is simply the interpreter, quad fns and the system commands leaving the rest of the detritus in add-on packages of some form. Just my grumpy 80-year old man's opinion…<grumble grumble> with respect…. Peter