How would you run a multipurpose dockerfile?

[nohant]

hello!
we would like to use frankenphp without octane (our service is still incompatible) so we would love to move from php -f to a frankenphp command that does the same in the entrypoint.

the problem is that we already have other commands like php artisan worker

function fpm() {
  echo "fpm is about to start..."

  php-fpm -F
}

function migrate() {
  echo "migrating db..."

  php artisan migrate
}

function worker() {
  queue="${1:-}"

  # NOTE: WORKER_MEMORY is set bigger arbitrarily big, real php's memory limit is set elsewhere.

  if [ -z "${queue}" ]; then
    echo "main worker is about to start..."

    php artisan queue:work \
      --memory="${WORKER_MEMORY:-4096}" \
      --timeout="${WORKER_TIMEOUT:-1800}" \
      --tries="${WORKER_TRIES:-1}"
  else
    echo "worker (queue '${queue}') is about to start..."

    php artisan queue:work \
      --queue="${queue}" \
      --memory="${WORKER_MEMORY:-4096}" \
      --timeout="${WORKER_TIMEOUT:-1800}" \
      --tries="${WORKER_TRIES:-1}"
  fi
}

how we have to launch the substitute for php-fpm since franken has the caddy already inside without using the octane server?