Question combining PC Steam project and Mobile Project

Hi there!

I wondering there have anyway to working on PC [Steamworks] project and mobile iOS or Android project
without separate a project? Because I have an issue when I working on PC [steamwork] project, and switch back to mobile, then it have a lot of errors about Steamworks SDK so now I have to separate them each other I cannot working together Now I have to working same in 2 project

there have anyway to working with them only one project? I don't want to separate them and working same two time... this is should be an outstanding of Unity right?

Thanks!!!