t-youtube/docs/PDD.md

Product Definition Document — T YouTube

Vision

A text-first YouTube experience — read transcripts, get AI summaries, never watch a video.

Goals

1. No-video YouTube — read subscriptions, watch content as text, never open the YouTube app
2. Daily digest — AI-summarized subscription feed delivered to Telegram daily
3. GFW-proof — works reliably from China despite YouTube blocks

Target Users

Self (Jimmy Gan). Primary use: morning skim of YouTube subscriptions via text summaries.

Success Metrics

• Daily sync completes without errors
• Telegram digest delivered every morning
• < 5s page load for dashboard