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Show HN: Frame-by-Frame Previews of MPEGs and PDFs (Rust)

https://flipbook.browserbox.io/
1•keepamovin•1h ago

Comments

keepamovin•1h ago
I made this to see how far I could get serving "video" (no sounds) on Cloudflare Pages using JPEGS. I generally like the idea of having different formats "standardized" to set of "pages", that you can scrub through. Like a book. Even, a flip-book. Hence the name. It was fun fine tuning the buffering to work across a range of connection speeds for "playback".

Then extended to documents (neat solution for XLSX by replicating row/column headers across the pages for readability), and finally to browser sessions (via BrowserBox, needs a license tho).

Repo for Rust binary releases: https://github.com/DO-SAY-GO/flipbook-releases

Site (explanation & demos): https://flipbook.dosaygo.com

I like the idea of scrubbable assets in a consistent format. Toyed with making it an actual file format (zipped manifest + folder of images) but for now settled on this static site generator.

You can also capture your browser sessions (e.g. https://browser-session-it94u.pages.dev/ ) if you have a BrowserBox license. Example: https://asciinema.org/a/eXhizwQ9FU5y49eP

I like doing a lot with simple technology. Simple e2e CLI tool that installs all deps and takes you from "file or url" -> CloudFlare Pages URL of the scrubbable asset. Heck, maybe the next title if this Show doesn't land should be "Convert Files to CloudFlare URLS". :)

Agents with Taste – How to transfer taste into an AI

https://emilkowal.ski/ui/agents-with-taste
1•dglzab•4m ago•0 comments

The FeMo-cofactor and classical and quantum computing

https://quantumfrontiers.com/2026/03/12/the-femo-cofactor-and-classical-and-quantum-computing/
1•EvgeniyZh•4m ago•0 comments

The Three Layers of Software Engineering

https://layers.lifebeyondfife.com/
1•lifebeyondfife•5m ago•0 comments

Open WebUI v0.9.0 adds desktop app with task scheduling

https://github.com/open-webui/open-webui/releases/tag/v0.9.0
2•simonjgreen•14m ago•0 comments

Show HN: DoShare Personal Cloud

https://cloud.doshare.me/auth/signup
1•vednig•17m ago•0 comments

Rspack 2.0

https://www.rspack.dev/blog/announcing-2-0
2•maxloh•22m ago•0 comments

A Man Who Invented the Future

https://hedgehogreview.com/web-features/thr/posts/the-man-who-invented-the-future
1•apollinaire•29m ago•0 comments

Show HN: Irregular German Verbs – a simple app, no ads or tracking

https://bacist.com/german-irregular-verbs-app/
3•baCist•29m ago•1 comments

China, India place strategic bets on clean energy (H2) out of favour in the West

https://www.reuters.com/sustainability/boards-policy-regulation/china-india-place-strategic-bets-...
1•alephnerd•33m ago•0 comments

Panipat: The Rise of the Mughals

https://www.historytoday.com/archive/feature/panipat-rise-mughals
1•Thevet•34m ago•0 comments

As We May Think

https://www.theatlantic.com/magazine/archive/1945/07/as-we-may-think/303881/
1•jxmorris12•35m ago•0 comments

Fast Image AI White Background

https://fastimage.ai/white-background
1•lucas0953•35m ago•0 comments

Firefox browser has started shipping Brave's adblock-rust engine

https://shivankaul.com/blog/firefox-bundles-adblock-rust
3•twapi•41m ago•0 comments

Pretrain vs. Fine-Tune

https://pub-c70e14727c3046cf8a36d9e598267788.r2.dev/26443b7e12/index.html
1•vinhnx•42m ago•0 comments

I built an AI memory and assistant app

https://apps.apple.com/us/app/memora-ai-memory-assistant/id6759516708
1•avishka_nirmal_•42m ago•0 comments

What Async Promised and What It Delivered

https://causality.blog/essays/what-async-promised/
3•zdw•44m ago•1 comments

From one disappointing order to a massive 'ghost cake' delivery scandal in China

https://www.cnn.com/2026/04/21/business/china-ghost-food-delivery-fine-intl-hnk
1•asplake•44m ago•0 comments

Questions on Mythos's Capabilities

https://www.flyingpenguin.com/the-boy-that-cried-mythos-verification-is-collapsing-trust-in-anthr...
1•koushikn•46m ago•0 comments

AI Has No Moat

https://geohot.github.io//blog/jekyll/update/2026/04/22/ai-has-no-moat.html
3•thoughtpeddler•48m ago•0 comments

Power without accountability: The Palantir manifesto

https://donmoynihan.substack.com/p/palantir-wants-power-without-accountability
4•tastyface•51m ago•1 comments

Show HN: Minimal visual chess openings explorer

https://aperturasdeajedrez.com.ar/en/
1•gperez78•57m ago•0 comments

Does everyone have the "Parents Decide Act" wrong?

https://www.privacyguides.org/videos/2026/04/22/does-everyone-have-the-parents-decide-act-wrong/
1•Cider9986•1h ago•0 comments

AGT – turning AI output into shareable pages

https://agt.pub
1•agentpublsh•1h ago•1 comments

Arc Raiders players decided to test who was friendlier, PC or console players

https://www.pcgamer.com/games/third-person-shooter/arc-raiders-players-decided-to-test-who-was-fr...
5•evo_9•1h ago•0 comments

New AI Lab from Jerry Tworek

https://www.coreauto.com/
1•sethbannon•1h ago•0 comments

AI is built to think like conspiracy theorists

https://substack.com/home/post/p-194947908
1•ScatmanSimba•1h ago•0 comments

Show HN: ModelX – Prediction Exchange for LLMs

https://model-x.up.railway.app/
3•Entropnt•1h ago•0 comments

OpenClaw stats don't add up

5•iliaov•1h ago•1 comments

Microsoft must face $2.8B UK lawsuit over cloud computing licences

https://www.reuters.com/sustainability/boards-policy-regulation/microsoft-must-face-28-billion-uk...
2•squiffsquiff•1h ago•1 comments

Macroeconomic Impacts of Defence Spending [pdf]

https://www.oecd.org/content/dam/oecd/en/publications/reports/2026/03/fiscal-and-macroeconomic-im...
1•sha_rad•1h ago•0 comments