Added the McNugget Madness site for reference and/or hilarity's sake. Uses a combination of websockets, manual transcription, and some really questionable JS to display a live counter.

Because it might be important for reproduction later, /etc/nginx/sites-enabled/default:
# You may add here your
# server {
#	...
# }
# statements for each of your virtual hosts to this file

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

server {
	listen 80 default_server;
	listen [::]:80 default_server ipv6only=on;
    #listen 443 ssl;

	root /var/www;
	autoindex on; #Show directory structure. (Turn off for production.)
	index explicit-index.html; #Now files called - have the same effect as index.html.

	# Make site accessible from http://localhost/
	server_name localhost;

	location / {
		# First attempt to serve request as file, then
		# as directory, then fall back to displaying a 404.
		#try_files $uri $uri/ /404.html;
		# Uncomment to enable naxsi on this location
		# include /etc/nginx/naxsi.rules
	}

	#location /doc/ {
	#	alias /usr/share/doc/;
	#	autoindex on;
	#	allow 127.0.0.1;
	#	allow ::1;
	#	deny all;
	#}

	# Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
	#location /RequestDenied {
	#	proxy_pass http://127.0.0.1:8080;
	#}

	#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;
	#}

	# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
	#
	#location ~ \.php$ {
	#	fastcgi_split_path_info ^(.+\.php)(/.+)$;
	#	# NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
	#
	#	# With php5-cgi alone:
	#	fastcgi_pass 127.0.0.1:9000;
	#	# With php5-fpm:
	#	fastcgi_pass unix:/var/run/php5-fpm.sock;
	#	fastcgi_index index.php;
	#	include fastcgi_params;
	#}

	# deny access to .htaccess files, if Apache's document root
	# concurs with nginx's one
	#
	#location ~ /\.ht {
	#	deny all;
	#}

	location /socket.io/ {
		proxy_pass http://localhost:8080;
		proxy_http_version 1.1;
		proxy_set_header Upgrade $http_upgrade;
		proxy_set_header Connection "upgrade";
		proxy_set_header Host $host;
	}
}

server {
	listen 8079;
	server_name localhost;

	root /var/www;

	location /socket.io/ {
		proxy_pass http://localhost:8078; #75-79 are officially unnassigned.
		proxy_http_version 1.1;
		proxy_set_header Upgrade $http_upgrade;
		proxy_set_header Connection "upgrade";
		proxy_set_header Host $host;
	}
}

server {
	listen 8077;
	server_name localhost;

	root /var/www;

	location /socket.io/ {
		proxy_pass http://localhost:8076;
		proxy_http_version 1.1;
		proxy_set_header Upgrade $http_upgrade;
		proxy_set_header Connection "upgrade";
		proxy_set_header Host $host;
	}
}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#	listen 8000;
#	listen somename:8080;
#	server_name somename alias another.alias;
#	root html;
#	index index.html index.htm;
#
#	location / {
#		try_files $uri $uri/ =404;
#	}
#}


# HTTPS server
#
#server {
#	listen 443;
#	server_name localhost;
#
#	root html;
#	index index.html index.htm;
#
#	ssl on;
#	ssl_certificate cert.pem;
#	ssl_certificate_key cert.key;
#
#	ssl_session_timeout 5m;
#
#	ssl_protocols SSLv3 TLSv1;
#	ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;
#	ssl_prefer_server_ciphers on;
#
#	location / {
#		try_files $uri $uri/ =404;
#	}
#}