+* [OHM2013](https://ohm2013.org/site/),
+ July 31-August 4, 2013, near Alkmaar, The Netherlands.
+ There was a lightning talk about tinc ([slides](presentations/OHM2013/The_tinc_VPN.pdf)) in T2 at 15:55 on August 1, a talk about [ChaosVPN](http://wiki.hamburg.ccc.de/index.php/ChaosVPN) in T6 at 13:00 on August 1,
+ and combined workshop for tinc and ChaosVPN at the [Milliways village](https://ohm2013.org/wiki/Village:Milliways).
+
+* [Chaos Communication Camp](http://events.ccc.de/camp/2011/),
+ August 10-14, 2011, in Finowfurt, Germany.
+ We were present in the [Milliways village](http://events.ccc.de/camp/2011/wiki/Milliways).
+* [FOSDEM](https://archive.fosdem.org/2011/),
+ February 5 and 6, 2011, in Brussels, Belgium.
+ We were present as part of the devroom "New challenges in Virtualization".
+* [FOSDEM](https://archive.fosdem.org/2010/),
+ February 6, 2010, at 15:20 CET.
+ At this event, Guus Sliepen gave a lightning talk titled
+ ["tinc: the difficulties of a peer-to-peer VPN on the hostile Internet"](https://archive.fosdem.org/2010/schedule/events/tinc.html).
+ You can look at the [slides](/presentations/fosdem-2010/tinc_fosdem2010_slides.pdf).