Record. Miss a click. Start again.
Every product update can mean another twenty or forty minutes of mouse choreography, voiceover edits and timestamp maintenance.
hourslost to repeat recording
OPEN SOURCE · POLLINATIONS-POWERED · BROWSER-VERIFIED
A mebularts open-source experiment
Your app can tell
its own story.
DemoWeaver turns a running web app into a professionally narrated product walkthrough — AI understands the product, the browser verifies the claims, and the Director shows exactly what the narration is talking about.
This page is the subject of DemoWeaver's own self-demo.
STOP RE-RECORDING DEMOS✦YOUR APP ALREADY KNOWS WHAT IT DOES✦LET IT EXPLAIN ITSELF✦OPEN SOURCE · BUILT IN PUBLIC✦STOP RE-RECORDING DEMOS✦YOUR APP ALREADY KNOWS WHAT IT DOES✦LET IT EXPLAIN ITSELF
01 / THE PROBLEM
Product demos shouldn't be a recurring chore.
Traditional screen recording is manual, fragile and immediately outdated. DemoWeaver turns the walkthrough into a repeatable build artifact.
Run one command. Rebuild the story.
The product is analyzed again, the live interface is verified again, and only then does the browser become the camera.
repeatablelike a software build
02 / THE PIPELINE
AI reasons. The browser keeps it honest.
DemoWeaver does not let an LLM invent a product tour and call it done. Each layer has a specific job, and the live browser remains the source of truth.
Product Analyst
Pollinations reads sanitized source context and browser discovery to understand what the product is, who it serves and what matters.
Feature Architect
Routes, navigation, forms and source hints become a structured map of real product capabilities.
Script Writer
The feature map becomes natural narration and YouTube chapters instead of a robotic list of DOM controls.
Visual Director
Every narration beat gets a visual intent: where to move, what to show, what is safe to interact with and what result should remain on screen.
Browser Verifier
Playwright checks AI claims against the real interface. Unsupported routes and visual targets are dropped before recording.
Director + Render
Cue-synced capture, TTS, subtitles, FFmpeg composition and YouTube metadata become a reusable release package.
03 / THE PROOF
The repo you're looking at can record this page itself.
The flagship demo is intentionally recursive: DemoWeaver scans the DemoWeaver repository, uses this showcase as its browser surface, writes its own walkthrough and records the result.
1Serve this showcaseGitHub Pages or localhost becomes the live product surface.
2Analyze its own repositorySource scanning is read-only and obvious secrets are scrubbed before AI context is sent.
3Generate its own storyPollinations creates the plan; Playwright verifies the page; DemoWeaver directs the capture.
THE SELF-DEMO
PS> .\SELF-DEMO.ps1
[STAGE] scan
SOURCE SCAN ✓
[STAGE] ai
Product Analyst → Feature Architect
Script Writer → Visual Director
[STAGE] verify
BROWSER VERIFIED ✓
[STAGE] render
YOUTUBE PACKAGE READY ✓04 / AI LAYER
Reasoning powered by Pollinations Gen.
DemoWeaver uses the current key-based gen.pollinations.ai/v1 API as the reasoning layer while keeping orchestration, browser verification, capture and rendering open source and local-first.
05 / OUTPUT
Not just an MP4. A publishing package.
The video, subtitles and YouTube metadata are generated together so the walkthrough can move from local build to public release without rebuilding the editorial layer by hand.
output/final/release artifacts
▶Product-Full-Walkthrough.mp4final narrated video
CCProduct-Full-Walkthrough.srtsubtitle track
00youtube-chapters.txtvalidated timestamps
✎youtube-description.txtpublish-ready description
#youtube-title-options.txttitle variants
↳timeline.jsonmachine-readable edit map
06 / BUILT IN PUBLIC
MEBULARTS
Developer tools, automation, and useful open-source systems.
DemoWeaver is built by mebularts as part of an ongoing collection of experiments that turn repetitive work into reusable tools.
YOUR NEXT PRODUCT VIDEO
Ship the feature.
Ship the feature.
Let the product explain itself.
Point DemoWeaver at a running app, add source context if you want deeper product understanding, and generate a browser-verified walkthrough.