The switch to Nixos

I will set up nixos once again (I've tried this multiple times) to hopefully be able to switch to it full time for free. With that being said, I'm going to set it up in a virtual machine, since Nixos is entirely build with a single configuration file. Let's get started.
It just uses the calamares installer, so pretty easy.
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We got it installed.
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now we navigate to the /etc/nixos folder and edit the configuration.nix file as root.
First we're getting the vmware guest tools installed by adding this somewhere in the file

virtualisation.vmware.guest.enable = true;

Now we use "sudo nixos-rebuild switch" to rebuild the system.