I prefer to hire generalists, though one problem I do run into is the generalists who aren't pragmatic, and they simply follow whatever is in-vogue at the momen

I prefer to hire generalists, though one problem I do run into is the generalists who aren't pragmatic, and they simply follow whatever is in-vogue at the moment. So you hire them and instead of them helping to drive the business, they decide they want to rewrite everything from Python to Go or Rust or whatever. So I would suggest you make it clear you want to work within a company's existing framework and not turn it into your personal technical debt playground.