Read carefully to be fully ready for two days of talks, fun, and networking!
🎟️ Before entering the Cité des Congrès
Generate your ticket before the event via the link received by email (sender: billetterie@mg2.gdgnantes.com). You can have it resent by clicking here.
⚠️ Once the ticket is downloaded, no changes will be possible.
Show your ticket (QR Code) – digital or paper version – at the entrance to collect your personalized badge.
⚠️ No ticket, no badge, no entry to DevFest! And don’t forget your badge at home on the second day!
🎒 What you absolutely need to have with you
Your badge: always wear it and keep it visible during the whole event.
Your reusable cup: no cups will be provided for coffee or drinks.
Your laptop if you’re attending a codelab or a Code in the Dark session (check prerequisites in the talk description).
Your good mood and respect for the Code of Conduct 💚 → A dedicated booth and people identified in green will be there to ensure everything runs smoothly and respectfully. #DevFestSafe
🛍️ Don’t forget on site
Pick up your goodies (t-shirt, stickers) on level 0, between the Tour de Bretagne and Les Machines rooms, or at the shop.
Bring your credit card: the shop lets you buy t-shirts from previous editions!
Prepare your schedule in advance:
- The schedule is available on your badge (read from left to right, top to bottom).
- The DevFest Nantes app is also available on the App Store and Play Store.
🧭 Explore DevFest!
Visit the sponsors’ booths: discussions, demos, contests, and activities!
Enjoy the Lounge Area on the 2nd floor: relaxation, activities, and surprises
Discover Nantes communities in the lounge area
Stop by the bone marrow donation booth – a small gesture that can save lives 💛
Check out our partners’ announcements on HelloWork!
🌙 Bonus & must-see activities
After Party: Thursday at 6:30 pm, don’t leave without joining the party!
Code in the Dark: code competition with no preview!
- Thursday 17th at 11:10 am and 3:10 pm
- Friday 18th at 11:10 am
- Room BC – Ground floor
HackerSpace Workshop (Thursday all day, on the 2nd floor in the Lounge Area) Learn to repair your equipment or discover open hardware & maker culture!
💬 After the talks
Rate the talks on OpenFeedback – the speakers thank you in advance!
⚠️ Practical info
Avoid large bags (Vigipirate plan). Bags will be checked at the entrance.
Scooters and e-bike batteries are prohibited inside the venue
A cloakroom will be available on site.
Eating and drinking are prohibited (except your water bottles) in the conference rooms
💛 And above all…
Make the most of DevFest Nantes 2025: inspiring talks, exciting encounters, and a unique atmosphere made by GDG Nantes 💥

