Non-default path to 'si.env' configuration file when calling 'si' executable from the command line to export CDL netlist from OA schematic ?

Dear all

In order to automate the generation of a CDL netlist from an OA schematic I'm invoking the si executable from the command line as follows:

si -cdslib some/path/to/cds.lib -batch -command netlist |& tee si.log

As you probably know the above command assumes that a configuration file named si.env  is placed in the same directory where si is executed
and it's used to specify the target library/cell/view to be exported into CDL along with other net listing options.
So my question now is... is it possible to invoke si at the command line by specifying some non-default path also for the si.env  as it can be done
for the cds.lib mapping file?

Unfortunately from si -help  this seems to be not supported, but maybe with some other "obscure" trick (e.g. environment variables?) this can be done.

Thanks in advance

Luca