muvm: simplify wrapper code

      coreutils

    ];

    text = ''

      if [[ ! -f /etc/NIXOS ]]; then exit; fi

      if [[ -f /etc/NIXOS ]]; then

        ln -s /run/muvm-host/run/current-system /run/current-system

      # Only create the symlink if that path exists on the host and is a directory.

      if [[ -d /run/muvm-host/run/opengl-driver ]]; then ln -s /run/muvm-host/run/opengl-driver /run/opengl-driver; fi

        if [[ -d /run/muvm-host/run/opengl-driver ]]; then

           ln -s /run/muvm-host/run/opengl-driver /run/opengl-driver

        fi

      fi

    '';

  };

  binPath = [

    dhcpcd

    passt

    (placeholder "out")

  ]

  ++ lib.optionals stdenv.hostPlatform.isAarch64 [ fex ];

  wrapArgs = lib.escapeShellArgs [

    "--prefix"

    "PATH"

    ":"

    (lib.makeBinPath binPath)

    (lib.makeBinPath (

      [

        dhcpcd

        passt

        (placeholder "out")

      ]

      ++ lib.optionals stdenv.hostPlatform.isAarch64 [ fex ]

    ))

    "--add-flags"

    "--execute-pre=${lib.getExe initScript}"

  ];