Repository for Debian 11 containing lsphp73-opcache

I upgraded to Debian 11 and found that the lowest version of PHP in the default openlitespeed repository is PHP 7.4.
Because of one application, I have to use PHP 7.3. I want to install lsphp73-opcache but can't find a way to install it.
Is there a repository I can add to Debian 11 that contains lsphp73-opcache?


oh, I see, you want to use the old version. This PHP version is end of life so we will not build it more on a new platform. The old platform may still support, e.g. bionic