[nraynaud]

It's absolutely different from a writer, I'm asking them to behave like a collaborative engineering team, not like a tortured drunk guy alone in a under lit room.

No 2 IDE can produce the same formatting, can store the dependencies and the running targets the same way, have the same shortcuts, etc. Therefore, you can't collaborate efficiently on the same machine.

Moreover, the only rule is that everybody uses the same, the majority can vote. Our last IDE change was initiated by a team member and multiplied the price per developer by 3