Hình Học Sống

Interactive Vietnamese THCS (lớp 7–9) geometry visualizer. Drag the points; watch the theorems hold. Aligned to the SGK curriculum.

Sandbox repo currently doubling as a gstack trial — see CLAUDE.md.

Status

Scaffold only (v0.0.1.0). Modules are placeholders — landing page lists three grades with "Sắp ra mắt" badges. See the design doc at ~/.gstack/projects/tiennm99-try-gstack/ for the full plan.

Develop

bun install
bun run dev          # http://localhost:4321/try-gstack/
bun run test         # Vitest (geom-engine unit tests)
bun run typecheck    # Astro check + TS strict
bun run build        # Static output to dist/

Deploy

Auto-deploys to GitHub Pages from main via actions/deploy-pages@v4. See RUNBOOK.md for rollback + domain-migration procedure.

Architecture (locked decisions, per autoplan review)

• Static: Astro SSG, base: '/try-gstack/', output dist/
• Typography: Be Vietnam Pro single family, weights 400/500/700, woff2 only, Vietnamese subset
• Math engine: pure src/geom-engine/ module (no DOM imports), Vitest unit tests; property tests with fast-check to be added with first canvas module
• Canvas: vanilla SVG + Pointer Events + setPointerCapture (no Konva) — to be added with first canvas module
• Math rendering: KaTeX, bundled locally + SSR-rendered — to be added with first canvas module
• Animation: Web Animations API + requestAnimationFrame (no GSAP / Motion One / Lottie)
• Analytics: Cloudflare Web Analytics, deferred until 50+ daily sessions
• i18n: every string via t() from src/i18n/vi.ts; English added by adding en.ts

License

TBD.