# Key Reference Documents

> This document is a granulated shard from the main "3-architecture.md" focusing on "Key Reference Documents".

1.  **Product Requirements Document (PRD):** `docs/prd-incremental-full-agile-mode.txt`
2.  **UI/UX Specification:** `docs/ui-ux-spec.txt`
3.  **Technical Preferences:** `docs/technical-preferences copy.txt`
4.  **Environment Variables Documentation:** `docs/environment-vars.md` (To be created)
5.  **(Optional) Frontend Architecture Document:** `docs/frontend-architecture.md` (To be created by Design Architect)
6.  **Play.ht API Documentation:** [https://docs.play.ai/api-reference/playnote/post](https://docs.play.ai/api-reference/playnote/post)
7.  **Hacker News Algolia API:** [https://hn.algolia.com/api](https://hn.algolia.com/api)
8.  **Ollama API Documentation:** [https://github.com/ollama/ollama/blob/main/docs/api.md](https://www.google.com/search?q=https://github.com/ollama/ollama/blob/main/docs/api.md)
9.  **Supabase Documentation:** [https://supabase.com/docs](https://supabase.com/docs)
10. **Next.js Documentation:** [https://nextjs.org/docs](https://nextjs.org/docs)
11. **Vercel Documentation:** [https://vercel.com/docs](https://vercel.com/docs)
12. **Pino Logging Documentation:** [https://getpino.io/](https://getpino.io/)
13. **Zod Documentation:** [https://zod.dev/](https://zod.dev/)