security – How to force "Swatch" to create a Perl script at a given location?

I extend Swatch file monitoring via systemd at startup.
Everything seems to work fine, except that it fills the root home directory with PERL scripts named .swatch_script. *
I would like to have them in a subdirectory that I can clean at any time the system starts.
Using the systemd directive
WorkingDirectory = / root / swatch
did not work.
No suggestion?