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philipsyesterday at 11:09 PM3 repliesview on HN

I just reverse engineered the Supernote note file format with an agent a few weeks ago. For years the community had been asking for a document on the format. And in a few hours the agent, with 20 something file format example fixtures and 30 something prompts, was able to reverse out the format.

It would have been completely not worth the effort to do this by hand for a niche device. Now, in a few hours of effort there is working code and a doc.

https://github.com/philips/supernote-typescript/blob/main/pl...

https://philips.github.io/supernote-typescript/


Replies

frioyesterday at 11:26 PM

While it’s impressive work from the LLM and a TS implementation is novel, there’s at least a couple of pre-existing Python REs eg. https://github.com/jya-dev/supernote-tool :)

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zatkinyesterday at 11:16 PM

I personally own a Supernote, but I'm not a heavy user of it. For the sake of my own curiosity, what benefits will you get out of having reverse engineered the Supernote note file format? It would be super rad to be able to move my notes between other devices, which is one big plus that comes to my mind.

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