Calibre database custom options?

I've been reviewing the documentation regarding customizing the database location and separating it from the book files. (to keep the database local and have book files stored on the network)

My question is this (related to a windows install):

Can the calibre database location be passed as an argument? I know that it is stored in an environement variable as CALIBRE_OVERRIDE_DATABASE_PATH. Can this be put in a config file, an .env file like in linux, or passed like calibre --config CALIBRE_OVERRIDE_DATABASE_PATH= xxx.

I'm trying to find better options besides the Windows system environment variables. So that I can specify when I launch.

Thanks.