Technical Wizard
A person who knows their way around technical appliances and computers. Someone who understands the deeper functions and quirks or computer programming, peripherals and applications as well as home electronics and is able to help mere mortals in coping with these.
Cindy hooked up my home cinema system AND fixed my PC. That gal is a real technical wizard, I tell you!
Technical Wizard
A YouTuber who makes tech videos, who’s also an otaku.
Have you seen that Technical Wizard video?