Nginx config for static web build with Nextjs

nextjs.conf

server {
    listen       80;
    server_name  localhost;

    root   /usr/share/nginx/html;

    location ~ /.+ {
        try_files $uri $uri.html $uri =404;
    }

    location / {
        index  index.html index.htm;
    }

    error_page 404 /_errors/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;
    }
}