Get in touch

There are different means to get in touch with us: Sending a mail to info@c3l.lu or over at Mastodon: @c3l@social.c3l.lu. Press & Media should use press@c3l.lu and see the press page. Please note that we are all doing voluntary work here. Do not expect immediate responses! There are simply no office hours. Secondly, we are not a computer repair shop. Don't contact us to ask if we can fix your computer. Also read this FAQ, before contacting us.

You can also visit us in our hackerspace ChaosStuff. See also our Guidelines.

We have a publicly-available Channel on our XMPP and Matrix server. Everyone is welcome to join and chat with us:

• XMPP: c3l@conference.c3l.lu
• Matrix: #c3l:matrix.c3l.lu

Events

A summary of events and activities taking place in the near future, is featured down below. For a full list, please consider the events page or subscribe to our atom feed.

• Meshcore Workshop (2026/10/19 18:00 - 20:00)
• ChaosMeeting (2026/10/19 20:00 - 23:00)
• Meetup @ ChaosStuff (2026/11/02 )
• ChaosMeeting (2026/11/16 20:00 - 23:00)
• ChaosMeeting (2026/12/14 20:00 - 23:00)
• Chaos Communication Congress (unconfirmed) (2026/12/26 - 2026/12/31 )

Regular Gatherings

ChaosMeetings usually take place on a Monday of every month at 8 PM in the ChaosStuff or online.
Meetups happen randomly on weekdays or weekends in the ChaosStuff.

See our Events to see what, when and where the next gathering is, and stay updated through our mailinglist. Everyone is very welcomed to join us and contribute in whatever form, which is helpful to our causes!

We are currently:

Past events

• ChaosMeeting (2026/09/21 20:00 - 23:00)