This conference isn't primarily about talks. It's about meeting people. While there will be talks about interesting topics the primary purpose is to meet old and new friends. We hope you'll enjoy your time with us in Darmstadt.
Feel free to book a room at Welcome Hotel Darmstadt, or one of the other hotels nearby. AirBnB is also an option.
By plane: The nearest airport is Frankfurt Airport. There's a bus from both airport terminals right to the hotel that takes about 30 minutes.
By train: Darmstadt is pretty well connected by train. IC and ICE trains stop at the central station. Also, in just about about 20 minute you're at Frankfurt central station that offers both national and international connections.
By car: Darmstadt is right next to Autobahn A5, so getting there by car is no big deal. Just try to travel outside of rush hour times.