Yes I've to admit that FARR is more powerful than a similar software named Launchy, and u r right, they don't have 2 know about each other, but there should be a way to share the shortcuts for users who want to launch items that set up in LBC through FARR.
Since LBC stores items in a .mcf file with special format, and I don't know how 2 set up my FARR to search in my .mcf file, maybe I have to store my app's shortcuts in a specified folder and indicate it in FARR for its searching, even I've added it in LBC.