How to mix both mobile first and desktop first designs?

Hello i hope everybody is fine :slightly_smiling_face:

Quick question : i’m designing a landing page. And in my setup, i’m mobile first, so the base is the mobile screen, and tablet+desktop are considered as variant.
I would like, for this page, to switch things up, and put the desktop as a base, and the other two as variants, because i already designed the desktop version. And now if i want to edit the mobile version, since it’s the base, it will edit my desktop version.

Thank you :slightly_smiling_face:

It won’t be easy if the rest of the project is mobile first… One thing you could try is to create another project that’s desktop-first, and put desktop-first pages there instead