I totally agree, that's exactly what I had in mind, X-Y-Z being a broader areas, not just a framework or a lib. For instance, I worked (in the span of now almos

I totally agree, that's exactly what I had in mind, X-Y-Z being a broader areas, not just a framework or a lib. For instance, I worked (in the span of now almost 20 years) on back-end, front-end, DBA and linux admin positions, and I'm not counting in that all the C++ and Delphi desktop programming that I did as a kid. This gives you a wider perspective on how things operate, and I find it very helpful when consulting clients on sys architecture, since I know how hard is to implement something in any part of the system and can plan for that ahead.