initializing the files and the memory bank.

memory-bank/techContext.md

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+# Tech Context
+
+## Primary Stack
+- **Frontend:** Next.js 14 (App Router) + React 18 + TypeScript, styled with Tailwind CSS and optional shadcn/ui components.
+- **Backend Worker:** Node.js (Fastify) with `youtubei.js` for Innertube chat ingestion, `better-sqlite3` for persistence, EventEmitter for internal pub/sub.
+- **Realtime:** Server-Sent Events for overlay updates; potential future WebSocket support via `ws`.
+- **Tooling:** `pnpm` for workspace management, ESLint + Prettier, Zod for schema validation, Vitest/Playwright for testing (to be introduced later).
+
+## Environment & Dependencies
+- No official API quota required; ingestion relies on Innertube visitor tokens produced at runtime.
+- Required env values: `YOUTUBE_LIVE_ID` (or stream URL), optional overrides for Innertube API key/context if we need to pin versions.
+- Local `.env.local` file manages configuration; sample `.env.example` committed for contributors.
+
+## Constraints & Considerations
+- Innertube endpoints change occasionally; design ingestion to update keys dynamically and fall back to alternate strategies if responses shift.
+- Application expected to run on Windows/macOS/Linux desktops used for streaming; keep dependencies cross-platform and avoid native build steps when possible.
+- No external database by default; design backend to operate fully in-process with optional local persistence.