Optimize rewrite

Server NGINX
1

hello

I have a script that works with apache but I want to migrate to nginx, I
have this rule, but maybe you can do differently optimized.

HTACCESS

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-s
RewriteRule ^(.*)$ index.php?url=$1 [QSA,NC,L]

RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.*)$ index.php [QSA,NC,L]

RewriteCond %{REQUEST_FILENAME} -s
RewriteRule ^(.*)$ index.php [QSA,NC,L]

NGINX

location / {
rewrite ^/(.)/(.)$ /$1/index.php?url=$2;
}

Thanks !!

Regards