Hack.lu was a really great 4 day long convention in Luxembourg, organised by the CIRCL, where we (jvoisin, maijin and xvilka) did two 6h-long workshops about radare2 wit in front of a crowed room. In total more than 60 people attended! At first, we didn’t expected much people and planned only one workshop. But we ended up refusing people and doing a second one the day after! Maijin did the first part, dedicated to reversing and actually using radare2, jvosin the second one about exploitation, and xvilka did the last one; about reversing and analysing firmwares.