The *websites/pyrocufflink.net* role configures the public web server to
host *pyrocufflink.net*. This site has two functions:
* It redirects `/` to http://dustin.hatch.name/
* It proxies user home directories (i.e. /~dustin/) to the file server
To support multiple websites with separate Let's Encrypt certificates,
the *certbot* role needs to be applied as a dependency of each
individual website role. This will allow each application to specify a
different value for `certbot_domains`.
Dustin