@pitaj vestacp has several nginx.conf. As I mentioned I edited "site-specific" config in /home/admin/conf/web where vestacp keeps configs for all hosts, inculding ssl and lets encrypt.
Maybe you mean global nginx.conf which is located in /etc/nginx ? I did no changes in it.
I had a bit of a play with it.... Works as advertised... Great plugin.
I'd love the ability to share a copy of the assets folder somehow as well tho. But I know this wouldn't be very safe.