So how do you set up clean URLs for drupal?

Question

Drupal

Need to set up clean URLs to use Drupal 8 on nginx server. I found many options for configuration files. They all look different, and I tried different options, but they all didn't work the way I wanted.
Now my config looks like this:

root /var/www/html;

# Add index.php to the list if you are using PHP
index index.html index.htm index.nginx-debian.html index.php;

server_name _;

location / {
    # First attempt to serve request as file, then
    # as directory, then fall back to displaying a 404.
    try_files $uri $uri/ /index.php?$query_string @rewrite;
}

location @rewrite {
    rewrite  ^/(.*)$ /index.php?q=$1;
}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

location ~ \.php(/|$) {

#   try_files $uri $uri/ @rewrite;
    fastcgi_split_path_info ^(.+?\.php)(|/.*)$;
    include /etc/nginx/fastcgi_params;
    fastcgi_pass unix:/var/run/php-fastcgi/php-fastcgi.socket;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME /var/www/html$fastcgi_script_name;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
#   deny all;
#}
}

So, if you turn to the section, for example, administration at the address of the form index.php/admin, then everything works successfully. However, if the address is accessed /admin, an error is displayed No input file specified.
. What should the configuration look like in order for the URL to be correctly recognized in both cases?
A big request is not to throw ready-made solutions from the Internet into answers!