[riskable]

Just get a hall effect or TMR keyboard and all your problems with key chatter will go away. Also, I recommend you just build it yourself. It's a fun hobby and if you don't know how to make PCBs it's a great way to learn (keyboards are one of the easiest things to make from a PCB complexity standpoint).

Ever play "connect the dots" as a kid? That's what it's like making a keyboard PCB. It's the adult version of "connect the dots".

It's not a "rabbit hole", it's a pending addiction :D

[reedlaw]

From the article I like the characteristics of hall effect better than TMR (although one of the cons under HE, "Since the sensor is reading magnet position, any wobble in the switch can change the magnet’s alignment and affect the signal", is a bit troubling). There are indeed $30-50 ones on Amazon. Any particular brand recommendations?