For me it is easy to grasp if they are in the order of software stack (Hardware, System, Infrastructure, apps, and so on ).
Built this chrome plugin that uses Gemini model, to classify. It works but, classification still not great. It is built using claude code cli.
on my Mac book pro, Gemini nano model loading takes around 11 seconds, and classification it self takes around 5 seconds. (if sub classification enabled it adds 6 more seconds approx). Model loaded in background thread. And unloads, if not used after 30 seconds. I would say still not pretty usable, without optimized classification time, but it works, to experiment with.