Addendum to previous question - using sub-domains for MAMP SITE then uploading

Okay. So my addendum question to the previous if this:

I plan on building a multisite on MAMP and then uploading it to * wherever's * appropriate, VPS, dedicated server, etc.

The intention is to create a network that allows beings to have their own pages with their own domain-names.

Can I create this in MAMP and just upload it? Wouldn't the domain names be relevant to the server/host?

Or is it all relative to the root directory of my brand site?

thanks all :slight_smile: