EDITORIAL COVER — NOT AN UPSTREAM RENDER
Film

How a Fridge Keeps Food Cold

A published explainroo example page about how a fridge keeps food cold, with a site-hosted MP4. The public examples directory has no script.md or scenes.js for this slug, so adapt the explainroo workflow instead of treating the film as included source. The repository is MIT; the hosted MP4 is not marked redistributable.

What you’re reusing

An editable film project. Adapt its story, assets, scene code, and timing to your subject.

Make it your own

  1. Inspect the actual source.

    Open the linked artifact and its project instructions. Check the required runtime, inputs, and upstream terms.

  2. Adapt the content and visual direction.

    Use the replacement notes above. Bring your own copy, data, assets, and branding; match the timing to your story.

  3. Preview, render, and review.

    Follow the upstream render workflow. Check framing, typography, audio, and output before publishing.

Review & sources 3

Source and documentation review is separate from installation and render testing.

explainroo — MIT license2026-10-27

LICENSE is MIT, copyright 2026 Vincent Schmalbach. This covers the software in the repository. It does not by itself grant redistribution of MP4s hosted on explainroo.com.

Read reviewed source
explainroo — leap-years example and nine site films without repo scenes2026-10-27

On 2026-10-27 examples/leap-years contained script.md, scenes.js, and video.json (title Why we have leap years, theme editorial, size youtube). The examples directory had no folders for what-happens-to-a-support-ticket, what-single-sign-on-does, how-a-fridge-keeps-food-cold, why-phone-batteries-wear-out, how-to-jump-start-a-car, how-to-make-pour-over-coffee, claude-demo, gmail-demo, or vroni-product-demo. Those nine pages returned 200 text/html at https://www.explainroo.com/videos/<slug>. Do not describe those nine films as included source. The leap-years example is editable source; its site MP4 was not found in the repository. No install or render test.

Read reviewed source
explainroo — ten site-hosted MP4s2026-10-27

Byte-range requests on 2026-10-27 returned 206 video/mp4 and an ftypisom header for what-happens-to-a-support-ticket.mp4, what-single-sign-on-does.mp4, how-a-fridge-keeps-food-cold.mp4, why-phone-batteries-wear-out.mp4, why-we-have-leap-years.mp4, how-to-jump-start-a-car.mp4, how-to-make-pour-over-coffee.mp4, claude-demo.mp4, gmail-demo.mp4, and vroni-product-demo.mp4 on www.explainroo.com. A HEAD request reported Content-Length 5128712 for claude-demo.mp4. Files were not copied and were not rendered locally. They are site-hosted and not in the MIT repository, so redistributable is false.

Read reviewed source

Keep exploring.

The full index ↗
Film

Unspar Product Demo

An explainroo product-demo example with script.md, scenes.js, and video.json for a clean YouTube-size Unspar walkthrough. Reuse that example structure and replace the product, brand, and script. The repository is MIT, but the site-hosted MP4 is not in the repository and is not marked redistributable.

explainrooSource reviewed
Film

What an API Does

A published explainroo example page about what an API does, with a site-hosted MP4. The public examples directory has no script.md or scenes.js for this slug, so adapt the explainroo workflow instead of treating the film as included source. The repository is MIT; the hosted MP4 is not marked redistributable.

explainrooSource reviewed
Film

How Compound Interest Works

A published explainroo example page about compound interest, with a site-hosted MP4. The public examples directory has no script.md or scenes.js for this slug, so adapt the explainroo workflow instead of treating the film as included source. The repository is MIT; the hosted MP4 is not marked redistributable.

explainrooSource reviewed