retroarch-bare: use structuredAttrs instead of passAsFile

    runCommand "declarative-retroarch.cfg"

      {

        value = lib.concatStringsSep "\n" (lib.mapAttrsToList (n: v: "${n} = \"${v}\"") settings);

        passAsFile = [ "value" ];

        __structuredAttrs = true;

      }

      ''

        cp "$valuePath" "$out"

        printf "%s" "$value" > "$out"

      '';

  # All cores should be located in the same path after symlinkJoin,