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Launch HN: Cardboard (YC W26) – Agentic video editor

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Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#71

Post by njoyablpnting »

dandaka wrote: post #68
njoyablpnting wrote: post #59

Earlier quoted context omitted.

> On Remotion, yeah, not sure it's the right fit, but honestly the sheer capability of models at writing code these days has surprised me. Just to clarify I still think code-driven graphics is the correct approach, but in my case I opted for a different library with a more powerful imperative API. > Also noticed they have an experimental client-side rendering version built on mediabunny Yes, I've tried it out, it was…

> in my case I opted for a different library with a more powerful imperative API. would you mind sharing the name?

I'm using my own fork of https://github.com/motion-canvas/motion-canvas

It's not really designed for the animation code to be dynamically changed on the fly, but I've hacked together this feature in my fork.

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#72

Post by spuzvabob »

njoyablpnting wrote: post #70
spuzvabob wrote: post #66

Earlier quoted context omitted.

> Totally understand the appeal and immediacy of a browser app, I was lured in by that too. For what it's worth I've reported showstopping WebCodecs issues in Chromium and there's basically no indication they'll get fixed on a predictable timeline. Interestingly I have the exact opposite experience, I've reported issues both in the WebCodecs specification and the Chromium implementation, in all cases they were fixed…

> Interestingly I have the exact opposite experience, I've reported issues both in the WebCodecs specification and the Chromium implementation, in all cases they were fixed within weeks. Simply though reports on public bug trackers and it wasn't really a major issue in any instance. That's fair, they are responsive most of the time. I do have one major rendering issue in particular I've been waiting on with no moveme…

> So you use a library that takes in text and vectorizes it to canvas shapes? That could work in theory, do you have a demo of this?

Yea, it's harfbuzz compiled to WASM: https://harfbuzz.github.io/harfbuzzjs/ Then all text layout features must be implemented on top of it, like linebreaking, text align, line spacing, kerning, text direction, decoration etc.

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#73

Post by hal9000xbot »

Really impressive execution on the agentic workflow architecture. The challenge you mentioned about "asking more questions upfront" instead of rigid workflows resonates deeply from building production AI agents. The key insight is that agentic systems work best when they have rich context about user intent rather than trying to guess from minimal input. Video editing is particularly challenging because the feedback loops are expensive (unlike text where you can regenerate cheaply), so getting the planning phase right is critical. Your approach of treating it like distributed systems with proper error handling and recovery makes complete sense. Looking forward to seeing how you handle the "verification problem" - knowing when the agent made the right creative decisions without human review.

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#74

Post by nzach »

ishandeveloper wrote: post #42
newbeeguy wrote: post #38

Earlier quoted context omitted.

Firefox is not supported ... But why?

Totally fair question. I've actually been a longtime Gecko/Firefox user myself, so this one stings a bit. The short answer: Firefox doesn't support the File System Access API ( https://caniuse.com/?search=File+System+Access+API ). We made a deliberate decision to go client-first. Video editing happens entirely in your browser without us uploading your entire footage on our end. No bandwidth costs for you, no storing…

This is a fair tradeoff.

I think you should consider putting this information in your site. I always read "we don't support Firefox" as "we are lazy", but that's not always the case.

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#76

Post by [deleted] »

vishalontheline wrote: post #64

This is a crazy question, but I would like to know how close I can get to the following: I would like to: - upload a bunch of surf footage - let it sort through the surfers - pick the three longest waves surfed by each surfer - create a montage grouped by surfer, ordered by shortest to longest wave for that surfer. Thank you!

[deleted]

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#77

Post by sxmawl »

vishalontheline wrote: post #64

This is a crazy question, but I would like to know how close I can get to the following: I would like to: - upload a bunch of surf footage - let it sort through the surfers - pick the three longest waves surfed by each surfer - create a montage grouped by surfer, ordered by shortest to longest wave for that surfer. Thank you!

just upload your clips, copy paste the above text into cardboard and see :)

i think it'd do a good job at it.

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#79

Post by sxmawl »

vivzkestrel wrote: post #53

- lots of players in the market doing this - https://news.ycombinator.com/item?id=42806616 - https://news.ycombinator.com/item?id=45980760 - https://news.ycombinator.com/item?id=46759180 - https://github.com/saurav-shakya/Video-AI-Agent - going to be rather tough to differentiate

it's gonna be fun :)
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