I generally used to mirror the theme folder for the project I was working on into the theme folder of the WordPress installation, however, Local uses a virtual machine. Is there a way I can activate the Guest Additions so I can continue using alias folders with Local?
Should have read through the threads that already existed first! This was answered already. 
Glad you found it
In case anyone else stumbles upon this thread here’s the answer:
https://local.getflywheel.com/community/t/symbolic-link-doesnt-work/83/2?u=clay