Mostly self-taught, been very lucky with the people I've encountered. Regularly accused of STEM/CS because I read far too many manuals. Actually not as 'classically trained' as I'd prefer... but also don't care; servile nonsense all the way down.

Have done almost every job, found system administration/DevOps/SRE stuff the most interesting. Security stuff is cool but also too product-oriented for my tastes.