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This scary AI recognizes passwords by the sound of your typing
(www.pcworld.com)
This is a most excellent place for technology news and articles.
Or if you want to go further, have foamed + plate mount + mixed lubed and unlubed switch + different color of switch on top of mixed brands of cherry mx, kailh, gateron, outemu and or lesser known/premium switches on single keyboard, the cost may be unusually high and need custom printed pcb.
Maybe you'll need to get use to typing on it as now comprised of various tactility and feedback feel.
Anything for privacy