If it gets really popular here on hacker news won't be long before chinese devices based on it start appearing. Or if someone is willing to invest $10-20k they could have devices ready to sell in less than 2-3 weeks.

> Or if someone is willing to invest $10-20k they could have devices ready to sell in less than 2-3 weeks.

Can you elaborate on this for someone unfamiliar with production? How one come up with the number and such time estimation?

With built-in networking so they can send your keylogs ;-)

One exists already. https://www.store.level1techs.com/products/p/4-port-km-switc...

Not every cool project needs to be a startup.

This. So much this. It's also really cool as a 'niche' project, and felt even approachable to someone like me who hasn't ever done more soldering than his first PS1 and a modchip.

I read some months ago that tinypilotkvm.com is doing JUST fine.

So yeah, sometimes niche markets can be profitable. And it doesn't have to be millions of dollars in VC money obviously to be invested.

Better make a Kickstarter or similar out of it. Don’t tie yourself to VC money if you can help it.