How can I connect multiple IDA Pro instances to a single Private Lumina server?

The Private Lumina server is provided free of charge along with the first IDA Pro license with a paid Private Lumina add-on. If you purchase a Private Lumina add-on for your IDA Pro, you will receive a Private Lumina server alongside the add-on. You will need to install the Private Lumina server on your end so all your IDA Pro instances with a Private Lumina add-on enabled can connect to it.