Nginx

server {
server_name sitename.com;

root /var/www/BookStack/public;
index index.php index.html;

location / {
try_files $uri $uri/ /index.php?$query_string;
}

location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
}