custom config after installation

Usually I add custom config before running the installer.sh script. Sometimes I forgot to add the custom config and just reinstall the server OS and start over.
My little custom config "script":

Code (Text):

mkdir -p /etc/centminmod
touch /etc/centminmod/custom_config.inc
echo "NGINX_SSLCACHE_ALLOWOVERRIDE='y'" >> /etc/centminmod/custom_config.inc
echo "NGINX_STAPLE_CACHE_OVERRIDE='y'" >> /etc/centminmod/custom_config.inc
echo "NGINX_STAPLE_CACHE_TTL='86400'" >> /etc/centminmod/custom_config.inc
echo "SET_DEFAULT_MYSQLCHARSET='utf8mb4'" >> /etc/centminmod/custom_config.inc
echo "AUTOHARDTUNE_NGINXBACKLOG='y'" >> /etc/centminmod/custom_config.inc
echo "ZSTD_LOGROTATE_NGINX='y'" >> /etc/centminmod/custom_config.inc
echo "ZSTD_LOGROTATE_PHPFPM='y'" >> /etc/centminmod/custom_config.inc
echo "LETSENCRYPT_DETECT='y'" >> /etc/centminmod/custom_config.inc
echo "DUALCERTS='y'" >> /etc/centminmod/custom_config.inc
echo "SELFSIGNEDSSL_ECDSA='y'" >> /etc/centminmod/custom_config.inc
echo "NGINX_LIBBROTLI='y'" >> /etc/centminmod/custom_config.inc
echo "NGXDYNAMIC_BROTLI='y'" >> /etc/centminmod/custom_config.inc
echo "PHP_PGO_ALWAYS='y'" >> /etc/centminmod/custom_config.inc
echo "PHP_PGO='y'" >> /etc/centminmod/custom_config.inc
echo "PHP_BROTLI='y'" >> /etc/centminmod/custom_config.inc
echo "PHP_LZFOUR='y'" >> /etc/centminmod/custom_config.inc
echo "PHP_LZF='y'" >> /etc/centminmod/custom_config.inc
echo "PHP_ZSTD='y'" >> /etc/centminmod/custom_config.inc
echo "PHPFINFO='y'" >> /etc/centminmod/custom_config.inc

Is there something I need to do when I want to apply the custom config after the installation based on my custom config?

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ah, I think you missed my question .
but for answering my own question. I just need to recompile nginx and php (and temporarily add AUTODETECPHP_OVERRIDE='y' to custom config when recompile php), and add default character utf8mb4 to my.cnf when i forgot to add custom config prior the initial install.
thanks for replying anyway.