Redit Server Setup questions

Hi,
I am considering using redit and round robin but i am quite new to it and wanted to see how to set it up correctly.

I understand you create a redit server seperately , should this be on its own dedi ? does it use much memory etc ?
Then each bungee instance has the software installed that connects to redit server.
The new redit does not appear to need nbt or time sync not sure of the exact name but something like that.

How do i round robin the different bungee instances ? do i just add...

Redit Server Setup questions