Rabbithole

On November 9, 2025, we held a workshop at the Gesamtschule Osnabrück-Schinkel. During the evacuation due to the bomb disposal in the Lokviertel, participants had the opportunity to learn the basics of programming with Python and get creative with "Pixelflut".

The workshop was a great success. Many of the participants had little or no prior experience with programming.

The NDR was also on site and reported on the event (german only):

https://www.ndr.de/fernsehen/sendungen/hallo_niedersachsen/bo…

Last year we started shifting our communication fromJabber/XMPP to Matrix. For this purpose we have set up a Matrix instance and moved our rooms and activities.

Now it is time to complete the migration. Because of frequent technical problems with mirroring the messages and because we no longer want to support Telegram, we have decided to take the bridge offline.

On 1st May 2025 we will discontinue our Telegram and XMPP/Jabber channel. We ask the few that still follow the public chat on these…

We have a new website! The first thing you noticed is probably the new appearance. But everything under the hood is new too! Additionally, a lot of work went into new and improved content.

We now present our hackspace Rabbithole on its own page. Curious visitors can get an insight into our space with a photo. To make it easier to find the hackspace, we provide detailed illustrated directions.

To better present the work of our association, we have collected all our talks, workshops, and other…

The Chaostreff Osnabrück e.V. is moving to a new dedicated location! From now on all meetings will take place in the AStA of the University of Osnabrück, Alte Münze 12, 49074 Osnabrück.

We have named out new hackspace Rabbithole and we look forward to setting up our new home.

We wrote an open letter regarding covid contact tracing apps. You can find the full text in our German news post.

We wrote an open letter regarding the Freedom of Information Act. You can find the full text in our German news post.

We're launching the mastodon server osna.social. Read more about it in our German announcement.

Since 2013, a round of hackers meets monthly in Osnabrück. This develops into the founding of the club Chaostreff Osnabrück e.V.