How would you spell the name Brooklyn?

Brooklyn
Brooklynn
Brooklynne

or two separate names - Brook Lynne/Lynn/Lyn

So I love the name, love it. And the nn Brooke is soooo cute. My moms mn is Lynne so I'd love to honor her if we ever chose that name - but I know Brooklynne is a super uncommon spelling so I'm not sure I'd want to do that..

How would you spell this name? could I get away with the Lynne spelling?