# The Error
cannot open connection to remote store 'daemon':

# configuration.nix
{ config, pkgs, ... }:


{
# Imported Configs
  imports = [/home/demo/ziad.nix ]
}

# ziad.nix
{ config, pkgs, ... }:

{ imports = [ ./net.nix ./pkg.nix ];

}

# net.nix
{ config, pkgs, ...}:

{
networking.hostName = "ziadNix";
networking.firewall.enable = true;
networking.firewall.allowPing = true;
}

# pkg.nix

{config, pkgs, ...}:
{
environment.systemPackages = [
        pkgs.emacs
        pkgs.firefox
        pkgs.vim
];
}