Ask HN: How can I map my windows keyboard to Mac?

For more advanced mapping (should you need it — see al_borland's comment) check out Karabiner Elements. It's been rock solid for me.

Keyboard Maestro will also do the trick, but Karabiner Elements might be lower-level and less fuss once you get it set up. Still, Keyboard Maestro is de rigueur on macOS, and worth every penny. You should buy a license anyway. (I'm not affiliated with KM, just a very happy user for many years.)

https://karabiner-elements.pqrs.org/

https://www.keyboardmaestro.com/main/store

In the macOS keyboard settings you can flip the Command and Option keys. That’s really all that’s needed.

In my experience the best place to start with such questions is SuperUser. [1] There are a few different options.

If registering an account there to ask questions, lurk for a while. They have a unique ettiquite.

[1] - https://superuser.com/search?q=map+windows+keyboard+on+mac