What changed.

Home leads with the latest work. Every index, course hub and the sitemap are now generated from one registry, so new courses, notes and assignments need no hand-written index pages. Courses not started yet are listed with “no notes yet”. Deploys now refuse to run if a submitted URL would move or change. Star-catalogue credit added.

Course structure. Everything lives under courses, with an ERA V5 hub. Simpler nav, breadcrumbs on deep pages, site versioning, sitemap, and design-review fixes. Session 2 assignment, version 2: the course's corpus and counting, vocabulary exactly 10,000, score 199,839,981, a journey section and clear downloads.

Session 2 assignment, version 1 (Marathi, my own corpus conversion, 9,897 tokens). Replaced by version 2.

Session 1 assignments on one page: four claims, each with a concept animation and a live in-browser experiment.

Session 1 notes with animated figures; notes and assignments indexes.

Launch: the observatory home page with the live sky over Corpus Christi, deep-space scrolling, and reader preferences.