FrankenPHP sounds promising, but in reality it is a weirdo: no one uses PHP without modules. Where is the list of PHP modules supported by FrankenPHP? Is it possible to compile it with some extra PHP modules? How? I see it is tightly bound to Caddy. I am not much familiar with that webserver, I would prefer nginx, but there's not a single guide mentioning if that's possible to use nginx with FrankenPHP (as a php-fpm replacement). Also, either Caddy itself, or FrankenPHP's docker image is quite opinionated in regards to using let's encrypt certificates and it is not trivial at all how to make it work via HTTP (if something external would provide SSL) or using own certificate.

> FrankenPHP sounds promising, but in reality it is a weirdo: no one uses PHP without modules.

You usually build the modules yourself in the Dockerfile, for example for the "pgsql" module:

    RUN apt-get update && apt-get install -y libpq-dev && docker-php-ext-install pdo_pgsql && apt-get remove -y libpq-dev && rm -rf /var/lib/apt/lists/*

    http://:80 {
        # rest of the Caddyfile directives
    }

static build, is built by default with these modules :

amqp,apcu,ast,bcmath,brotli,bz2,calendar,ctype,curl,dba,dom,exif,fileinfo,filter,ftp,gd,gmp,gettext,iconv,igbinary,imagick,intl,ldap,lz4,mbregex,mbstring,memcache,memcached,mysqli,mysqlnd,opcache,openssl,password-argon2,parallel,pcntl,pdo,pdo_mysql,pdo_pgsql,pdo_sqlite,pdo_sqlsrv,pgsql,phar,posix,protobuf,readline,redis,session,shmop,simplexml,soap,sockets,sodium,sqlite3,ssh2,sysvmsg,sysvsem,sysvshm,tidy,tokenizer,xlswriter,xml,xmlreader,xmlwriter,xz,zip,zlib,yaml,zstd

https://github.com/php/frankenphp/blob/main/build-static.sh#...