Nginx config VHost PhpBB 8.1 (Debian 11 Bullseye)

nginx.conf

server {
  listen 80;
  listen [::]:80;
  
  listen 443 ssl http2;
  listen [::]:443 ssl http2;
  
  server_name _;
  
  ssl_certificate /etc/nginx/ssl/phpbb.local.crt;
  ssl_certificate_key /etc/nginx/ssl/phpbb.local.key;

  root /var/www/phpbb;

  index index.php index.html index.htm;

  location / {
    try_files $uri $uri/ @rewriteapp;

    location ~ \.php(/|$) {
      include fastcgi.conf;
      fastcgi_split_path_info ^(.+\.php)(/.*)$;
      fastcgi_param PATH_INFO $fastcgi_path_info;
      fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
      fastcgi_param DOCUMENT_ROOT $realpath_root;
      try_files $uri $uri/ /app.php$is_args$args;
      fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
    }

    location ~ /(config\.php|common\.php|cache|files|images/avatars/upload|includes|(?<!ext/)phpbb(?!\w+)|store|vendor) {
      deny all;
      internal;
    }
  }

  location @rewriteapp {
    rewrite ^(.*)$ /app.php/$1 last;
  }

  location /install/ {
    try_files $uri $uri/ @rewrite_installapp =404;

    location ~ \.php(/|$) {
	include fastcgi.conf;
	fastcgi_split_path_info ^(.+\.php)(/.*)$;
	fastcgi_param PATH_INFO $fastcgi_path_info;
	fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
	fastcgi_param DOCUMENT_ROOT $realpath_root;
	try_files $uri $uri/ /install/app.php$is_args$args =404;
        fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
     }
   }

   location @rewrite_installapp {
     rewrite ^(.*)$ /install/app.php/$1 last;
   }

   location ~ /\.svn|/\.git {
      deny all;
      internal;
   }
}