What has really jumped out to me in the comments is just how complex the web stack configuration has gotten to be. It's almost not enough to just say "Nginx",

What has really jumped out to me in the comments is just how complex the web stack configuration has gotten to be. It's almost not enough to just say "Nginx", you have to specify if you're using it in front of Mongrel/Passenger/Unicorn, just to serve static content, load balancing, etc.