The sync step copies the reference's engine, harness and content into site/src/game/generated/ and replaces only content/index.ts (node:fs) with a re-export of a browser content module (static imports of cards, words, seams, levels). /play/ has a level picker, text-tile grid, keyboard and buttons, cards then tiles, the chooser as buttons, rules, minions, the log tree, Undo by replay and Restart. test:site plays l3 to the win under plain Node. Lessons 5, 10-13 and the home page link the page; lesson links to site pages go through their source file. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Course website
Astro Starlight site built from the lessons in course/.
Run locally: npm ci && npm run dev (from this directory), then open http://localhost:4321.
npm run sync (run before dev and build) generates two git-ignored directories, so nothing is copied by hand:
src/content/docs/course/: one page percourse/*/lesson.md, andcourse/harness.md.src/game/generated/: the play page's game. The TypeScript reference of the highest module that has one (engine/,harness.ts,content/), copied unmodified, except thatcontent/index.ts(which reads the cards withnode:fs) is replaced by one that re-exportssrc/game/content.browser.ts; pluscards.jsonandlevels.json, which that module imports statically.
The play page (/play/, src/pages/play.astro) is SpellGrid in the browser. src/game/session.ts holds the harness and the list of inputs (Undo replays them; Assemble's questions are answered by replaying with one more answer), and src/game/play.ts draws it. Neither knows a rule. scripts/game.test.mjs loads the same files under plain Node and plays Level 3 to the win (npm run test:site from the repository root).
A lesson links to a site page by its source file, such as [Play SpellGrid](../../site/src/pages/play.astro): the sync rewrites that to /play/, and the link still works on the repository's web view.
COURSE_HOST (e.g. course.example.com) sets the public site URL at build time. Unset, the site uses http://localhost:4321. Deploys must set it; see ../deploy/README.md.