This looks great. I can't wait to dive in. Thank you very much for sharing.
Formatting nitpick for the site: when viewed on mobile, the text width is set to screen width minus 1 margin, but the page is fixed at text width plus both margins, so the scrolling has a lot of sloppy side-to-side play and it's irritating to get the content lined up in the middle.
Formatting nitpick for the site: when viewed on mobile, the text width is set to screen width minus 1 margin, but the page is fixed at text width plus both margins, so the scrolling has a lot of sloppy side-to-side play and it's irritating to get the content lined up in the middle.