Ability to put file location of openvpn cert & key as environment variables

[funnything1]

I have been having problems with gluetun & cyberghost where i have to put the client key and the client certificate as environment variables and some applications dont like having the entire base64 in the evironment variable. This would fix all my issues on trunas as there is currently a 1024 character limit on environment variables.
Maybe like this:
OPENVPN_CERT_FILE = \mnt\Storage\client.crt
OPENVPN_KEY_File = \mnt\Storage\client.key