Multiple macs and same peripherals

No. There are other products that can do this, at least other keyboards.

Logitech K811 is probably the best wireless backlit keyboard you can buy and it will connect to 3 devices simultaneously. It is bloody expensive though.

https://www.amazon.co.uk/Logitech-B...&qid=1508159735&sr=8-3&keywords=k811+logitech

 

you will need non bluetooth connections.

We sell usb switches at work.
2 computers can share 4 devices at push of button.

so any wireless keyboard/mouse set with usb dongle or wired set be fine.

 

Why not use something like synergy

https://symless.com/synergy