Gamma

Build me an AI slide-deck generator to replace Gamma. Requirements: - A Node CLI around Slidev. `deck new "<topic>"` asks an LLM (key in .env) for an outline, then slide-by-slide content as JSON: title, bullets, speaker notes, layout name. - Render that JSON to a Slidev slides.md; `deck preview` runs the Slidev dev server, `deck export` writes PDF and PPTX. - Five layouts: title, bullets, two-column, big-quote, image-right. Images are optional via an image API key in .env; skip them cleanly when absent. - One theme file for fonts and colors so every deck matches without redesign. - `deck redo <n>` regenerates a single slide by number and leaves the rest untouched. - Decks are files in ./decks/<slug>/ (slides.md plus assets), kept in git and hand-editable after generation. No database. - No accounts, no telemetry; the only network calls are the LLM and optional image API. - Out of scope: a web editor, share links with analytics, collaboration. slides.md in my editor is the editor. - README: keys, export commands, and how to add a layout.