A compulsive reader here. I have been using Unix-like operative systems since the stone age. That includes all sort of GNU/Linux distributions and BSD descendants. I used to spend hours tweaking my kernel when the fire had not yet been invented. I also enjoy racking my brain with security challenges.
However I'm far for being a pro and I'm here more to learn than to teach. If you are curious, see my GitHub profile. PRs, ideas for bizarre projects and job offers are welcome. No recruiters, please.