So, tactile switched have that little metal leaf on the left giving the switch its tactile feel.
Would it be possible to add an electromagnet in the switch to manipulate that little piece of metal on demand through software?
That would allow you to toggle the tactile-ness on the fly, even key-independent if needed, so blue switches would basically have a toggle-able "Silent Mode", which would be a pretty huge selling point.
I know keyboards already have around 5v routed for RGB already, Is this pure fantasy or do-able?