Ask HN: What skills should I (try to) pass on to this year's intern?

Nearly every summer for the last 10 years, there has been an intern or two where I work (small software group inside of a manufacturing company). We usually get them on the younger/earlier side. We've tended to throw a project or two of side interest their way, help them with the tools, and see what they come up with. Lots of extra bandwidth hasn't usually be something we have in excess during the summer months. Our own development model looks a lot like open source (e.g. initiative, trust, collaborative process, play outsized roles compared to more "managed" organizations).

I'm trying to be a little more intentional about it this year. They'll have access to both our group and the small group that does web facing front end stuff. So the web UI guys will have to do what they want with them. I do all of the other stuff (from Elixir APIs to embedded C on microcontrollers to native apps to embedded Linux). More than coding C, Elixir, Python, Kotlin, Swift though, my first inclination is to expose them to as much Linux as I can. We run multiple servers and develop a product that runs embedded Debian on a small SBC. Knowing Unix decently has been one of the most transcendental skills for me over the years.

What types of experiences would you try to create for a relatively inexperienced intern in such an environment?