Exactly what I did. 2 desktops at home and office, sync via dotfiles for OS config, documents via Nextcloud and src via git.

A laptop (xps 13 9360) for traveling or working in remote places.

Even have a yubikey on each desktop and one for travel. All storing the ssh keys.

I don't use the laptop for months, open it and update the packages and dotfiles before going for a travel and that's it. Ready to go.