Agentic AI (Claude) wrote the single-file builder — HTML/CSS/JS + an inline drawing.
No outside services — it runs fully in your browser, even offline.
Netlify to host it.
Tokens (approx) — ≈ 25–45k tokens for the builder with its dialect logic; ~5–10k for each new topic. Time · skill — About a day · beginner (paste + run).
Make your own — tell an AI this
Build a single self-contained HTML “conversation builder.” Three pickers: LEVEL (beginner / intermediate / advanced), COUNTRY (each with its own address grammar — voseo vs tú vs usted, local words), and TOPIC. Generate dialect-correct practice phrases from the picks, let the learner build a short exchange, and produce a downloadable “práctica” file plus a small inline drawing of the topic. Warm, no outside dependencies.
The short version
Pick your topic, and the levels + dialects you want.
Ask AI to build a single-file picker that makes dialect-correct phrases.