How to migrate server from "root" to "mc"

So I’m new to MineOS, obviously, and so I followed some online tutorials on the initial install and WebUI. I came here to look into some additional configurations and noticed that I’ve been lead astray by those tutorials because all the ones I found said to use root instead of the non-root user.

It should have been obvious, and now I’m wondering if there’s a way to transfer the server to mc. I’m rusty with Linux, but I know the basics.

Take a look at this post: Can only start my server with root