Enabling OCI8 / Oracle extension on PHP-FPM (HestiaCP)

Hi,
I’m trying to enable the OCI8 / PDO_OCI extension on a HestiaCP server in order to connect a Laravel application to an Oracle (JDE) database, but I’m stuck.

My server is an Ubuntu 20.04 with php-fpm with 7.4 / 8.0 / 8.2 under AWS.
I installed Oracle Instant Client 19 under /opt/oracle/instantclient_19_29

In the PHP configuration templates I see:

;extension=oci8_12c
;extension=oci8_19
;extension=pdo_oci

However, i’m not able to fine the actual modules on the system:

find /usr -name "oci8*.so" → no results

Enabling them results in PHP startup errors because the .so files don’t exist.

I tried compiling OCI8 manually, but Hestia’s PHP uses a different API version, so the build fails.
Also tried installing php8.2-dev / php-oci8 from apt, but these packages aren’t available with Hestia’s PHP builds
(with the help of AI)

Does HestiaCP include OCI8 modules somewhere, or are those lines in the PHP template only placeholders?
Is there a recommended way to add OCI8 support to one of the PHP versions installed by Hestia?

Any guidance from someone who already solved this would help a lot.
Thanks.