All your nerdy decorations will be broken within two weeks. Nerds don't do bars; they drink warm milk before bed every night at 9PM.
There's a reason why there are no nerds bars. Anywhere.
You say you are knowledgeable about bars, but then you let on that you have no money. Your largest hurdle in this entire endeavor is landing a liquor license....and good luck doing that with no money, unless you live in a town in North Dakota: population 3.