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The OP is clearly asking about setting up a Mac dev environment, so suggesting that they buy a non-Mac machine is not helpful.

It isn't so clear to me. As I read it, OP might be asking about a dev environment on Mac, not necessarily for Mac-only development.

It is clear that they want a "dev environment on a Mac". They don't have to be necessarily developing for Mac.

I don't develop for Mac yet I prefer a Macbook.

The only thing clear to me is they are on a Mac and want a dev environment of some unspecified kind.

There are multiple ways to interpret the OP's statement.