They require several things prior to issue. You must submit a photo of your storefront. In addition they will want to inspect you wo see what type of security you have. They will check to see that you are not in violation of any zoning laws. You have to sell guns, not just aquire them. Lot of red tape nowadays.
If you want to get anywhere with your FFL you need lots of time and tons of start up capital. I can honestly say it isn't a 'hobby' kind of thing. You are going to have to run a legitimate business on top of keeping up with all the requirements of performing firearms sales transactions. None of this is impossible, but it is also not just a day at the park.