The site begins as a static build because that matches the current needs of the series. Pages, Markdown journal entries, and careful presentation are enough for this stage.
Interactive features can come later, but they should arrive only when there is a real design reason for them. Newsletter capture, comments, accounts, and community tools all create moderation, privacy, and security obligations.
For now, the public surface stays simple: readable pages, no user data collection, no hidden services, and no spoilers that would undercut the books.