Makecode serve with nginx

I created a custom makecode image, build (pxt staticpkg) and serve with nginx

This is my nginx configuration:

server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;
    root   /usr/share/nginx/html;

    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        try_files $uri $uri/ /index.html;
    }

    location /static {
        root /usr/share/nginx/html/docs;
    }

    location /hexcache {
        root /usr/share/nginx/html/hexcache;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

}

Do you think there is anything worth changing about this? Why not use hexcache?