Which filers under .idea to 'share'

I have two computers I develop on (desktop, laptop).  The project directory for each is different, though the project has the same name

I sync the project files using git

I am wondering which files in the .idea folder, if any, I should save to git.  Which ones can the two computers share and whicj should be uniqure to the machine it is being used on?

(I recently figured out how to create a run configuration that didn't have to be updated on each machine using Path Variables)