Most people with which I've interviewed recently seem to understand that lots of tech people do significant work outside of their formal employment.

But I also wasn't imagining a separate section. I have a "skills" section and that's where I'd imagine adding the things about which I was responding.

> People may even consider it a red flag that you list skills you didn't work with in your most recent position.

I could understand this somewhat if someone had been at their most recent position for a decade but for anything less than that it doesn't seem unreasonable to me to include things one might not have used, or used frequently, at the single most recent position.