I've been mulling over setting up a docker container with eqemu on it.. That could eliminate the need to even need to follow all the steps.
And the Virtualbox is great for a test environment, if you use native linux, it all still applies.
If any steps get outdated or are unclear, let us know.
https://hub.docker.com/u/eqemu/dashboard/
If any other Dev gets interest in this lemme know.