Configuring OpenSSL configuration file

We want to configure OpenSSL through a custom configuration file:
https://docs.openssl.org/3.0/man5/config/

Is there a way to achieve that with HAProxy?

As far as I know openssl configuration file is read when initializing openssl at haproxy start.

Is that not what you are seeing?

Yes but I’d like to store a custom config file in a non-default location. Many OpenSSL commands allows pointing to a configuration file with -conf. If HAProxy offered the same you would not have to replicate configuration items like HAProxy Enterprise Documentation version 2.9r1 (1.0.0-328.464) - Configuration Manual

Is my understanding.

I confirm that Haproxy does not allow to specific custom openssl configuration file paths.

It only needs to be specified once. Where exactly do you need to replicate the SSL configuration?