The main typeface is Chaparral, designed by Carol Twombly. Small sidenotes and the like are set in DejaRip by Anatoletype. Both are displayed with Typekit.
The site is built with Jekyll and hosted on Netlify. I use Buttondown to send the newsletters.
I am indebted to Ethan Marcotte, David Yee, Rob Brackett, and Nevan Scott for their counsel and assistance in getting everything working; as well as to the fantastic communities of Stack Overflow and CSS-Tricks who make this whole web development thing so much easier.