Auto-generate a searchable help video library for an app
Used Replit Agent to build a /help page that generates tutorial videos via scenes, Playwright recording, TTS narration and ffmpeg stitching.
Done with Replit Agent
What they did
The author copied this exact prompt into a Replit agent: add ?demo=1 mode with seeded fake data and no DB writes; define each video in code as scenes specifying route, narration script, and scripted cursor movements; have Playwright record the app while TTS narrates; use ffmpeg to add captions and stitch scenes; output MP4 + transcript + manifest.json. The agent was told to make builds resumable, frame-check every video, enable transcript search, and keep the page fully keyboard accessible.
How it went
No results, numbers, or shortfalls are stated. The post only shares the prompt after users asked how the library was made.
Worth knowing
The source does not publish success rates or outcome numbers for this one, so treat the claims as unverified.
Try it yourself with Replit Agent
Add a /help page to my app [app name or URL] that automatically generates short tutorial videos for [list of features or flows]. For each, write a scene script, record the steps with Playwright, add text-to-speech narration, and stitch the video with ffmpeg. Finish with a searchable library of the videos on the page and show me one working example before generating the rest.
Source on X - Jul 9, 2026
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