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There are different means to get in touch with us: Sending a mail to info@c3l.lu or over at Twitter: @c3l_. Press & Media should use press@c3l.lu or call +352-27-40-20-30. 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

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.

ChaosMeeting (2025/07/28 20:00 - 23:00)
WHY2025 (2025/08/08 17:00 - 2025/08/12 16:00)
ChaosMeeting (2025/08/25 20:00 - 23:00)
ChaosMeeting (2025/09/29 20:00 - 23:00)

ChaosMeetings will usually take place every second Monday at 8 PM in the ChaosStuff. Check out the Meet-Up. Everyone is very welcomed to join us and contribute in whatever form, which is helpful to our causes!

We are currently:

ChaosMeeting (2025/06/30 20:00 - 23:00)

For a lot of people living in Luxembourg it already became a tradition to head out on the field for the Rock-A-Field every year in Roeser. But this year was kind of special. I wanted to bring a piece of (h)acktivism with me and use the opportuniy to talk to people about Edward Snowden.

Thanks to the campaign of the Courage Foundation (see previous blog post), I wanted to spread the word about it on the festival. Below you find 3 results, but more hide behind the new project we have launched with it: Stand with Snowden!