On Thursday, February 25 2021, we invited Matija Šuklje to teach us about Open Source (FOSS) components and compliance. He likes to describe himself as lawyer by trade and hacker by heart, which makes him the perfect person to bridge a gap between us, engineers/scientists and the (seemingly complicated) world of law! Aside from the theoretical part about licensing and compliance, he also showed us useful tools that can help us properly mark our code and describe copyright and licensing information.