I'm not talking about hyper-flexible tools like Emacs or Perl. I mean tools that do one thing, and do it well, with zero tweaking needed, or even allowed. A hammer, a hacksaw, a copy machine, a vending machine, software like age, or like notepad.exe. They can be learned end to end in a rather short time, and if you pick a hacksaw in a different workshop, it's almost guaranteed to work exactly the same as yours.
Somehow in the same vein, some people prefer to write in C and tell the machine what exactly it must do, on a very low level, instead of picking an abstraction-rich language like Typescript or C++ or, well, a Lisp, where you typically operate in abstractions which you need to tweak to express your solution elegantly and correctly, but not very directly.