This is the first entry in overflow. Nothing fancy: this whole site is a folder
of Markdown files in a git repository. Writing a post means adding a file here.
Publishing means that file lands in a commit on main.
Everything else — the design, the cross-references, the tag pages — is just tooling built on top of that one fact, described in more detail in the post right after this one.
If you’re reading this on the live site, the hover preview you get when you mouse over that link is a popover pulled straight from that post’s own content — no separate summary to keep in sync.