Perhaps even more geeky / street cred than Linux, I use OpenBSD. But I also have a trusty mbp, and it's pretty nice to have something mainstream enough that it'

Perhaps even more geeky / street cred than Linux, I use OpenBSD. But I also have a trusty mbp, and it's pretty nice to have something mainstream enough that it's supported by pretty much everyone, yet still have a shell prompt (for both local and ssh to a real operating system). So to me it's basically a web + terminal appliance, and it's extremely convenient.