VERY minimal, plan to walk or use the provided shuttle.
Some outfit inspiration that will be acceptable... - a suit with no tie - a nice dress - a long sleeve button down shirt and slacks
Fly in through the Dayton International Airport! There are taxis, rental cars, and lyft/ubers at the airport you can use.
Under the travel tab there is a list of local Airbnbs, a hotel option, and some bed and breakfast options in Yellow Springs! Most of those options are walkable to our house and a shuttle will be provided to our house from the hotel!
Who knows, Ohio is notorious for unreliable weather. Be sure to look at the weather while packing!