The Seafile Workshop 2017 takes place at:

Université de Strasbourg, France
"College Doctoral Européen"
46 boulevrad de la Victoire
67000 Strasbourg
Amphithéâtre - ground floor
Map: http://mob.u-strasbg.fr/geoloc/index.html?permalinkId=35

Hotels in Strasbourg and suburbs:
https://seafile.unistra.fr/f/273c6c027d/

Aiports 
Strasbourg
http://strasbourg.aeroport.fr/
Baden-Baden
https://www.baden-airpark.de/en/passengers-and-visitors/timetables/live-flight-information/
Basel - Mulhouse
https://www.euroairport.com/fr/

Train station
Strasbourg
https://www.voyages-sncf.com/train/gare/strasbourg/gare-strasbourg
https://rail.cc/de/strassburg/bahnhof-strassburg/l327

Directions - Strasbourg airport to Seafile Workshop location:
Take the shuttle train TER (departs four times per hour) and arrive at Strasbourg train station (9 minutes). Detailled information about the shuttle train: http://strasbourg.aeroport.fr/EN/Passengers/Access/Shuttle-train.html
At Strasbourg central station: Use the tramway, direction Neuhof Rodolphe Reuss, and get off at the station "Observatoire", and you have reached the Seafile Workshop:
https://goo.gl/maps/DUJCGo8Emou

We recommend the CTS website to organize your trip to Starsbourg:
https://www.cts-strasbourg.eu/fr/se-deplacer/recherche-itineraires/