NixOSConfig/lib/system.nix

{ nixpkgs }:
    name :
        { dualBoot ? false } :
            let
                lib = nixpkgs.lib;
                configPath = ./machines/${name}.nix;
                machineConfig =
                    if builtins.pathExists configPath then
                        configPath
                    else
                        ./hardware/base.nix;
            in
                lib.nixosSystem {
                    system = "x86_64-linux";
                    modules = [
                        (
                            { config, pkgs, ... }: {
                                imports = [
                                    machineConfig
                                ];

                                virtualisation.vmVariant = {
                                    virtualisation.sharedDirectories = {
                                        keys = {
                                            source = "/etc/ssh";
                                            target = "/etc/ssh";
                                        };
                                    };
                                };
                            })
                    ];
                }