At least in my circle of friends I'm a 'computer guy', although I claim no expertise. I've been a constant Linux user since around 2009 and have picked up a lot of tricks along the way to keep things running, which came in handy today when a new kernel update borked my graphics card temporarily.

I do get frustrated with myself because all of my ability rests on 'tricks learned' rather than step by step or crystalized knowledge. So much of what I do works and I have no idea why!