Docker install on Synology : how to create use with no home and no shell

Fantastic post, used it to set up my docker image.
The only issue is getting my Aeotec ZStick Gen5 to workout with a chmod every boot.

I tried following the instructions here but with no success. If I manually create the symlink it works, because my chmod on the symlink is applied to the ttyACM0 as well, but my usb-zwave.rules file doesn’t appear to work. I also can’t figure out how to debug it.

Any ideas?

Thanks.