It's an incredible technique, when I came across it, it just changed the way I thought of solving giving out keys without "truly" giving them out. This gave me confidence for eternalvault.app, a project of mine.

I’ve been noodling over this exact business idea for a couple years! Part of my value prop was to make ops scale down to as close to zero as possible by having the encrypted data and most of the front end for accessing it live in S3 objects (or some similar mega-cheap object store). Aside from that, all you need is the dead man’s switch mechanism. And the secret fragments would live on QR codes that bring you to the static SPA with one of the fragments already loaded up, prompting you to scan more to complete the decryption.

Good work doing it. I guess now I don’t have to. :D You may have gained a customer from this HN thread.

Indeed, that's precisely why I decided to ditch out of the subscription model and went into one time payment method, did the math and it made sense that I don't need a very heavy system apart from supporting the dead man switch trigger

Wrote my thoughts about that here: https://eternalvault.app/blog/why-we-are-adding-lifetime-pri...

And it feels good to know that there are people out thinking about this, makes me happy truly and if you want to try out the platform, welcome aboard, happy to walk through it if needed. :)