Show HN: Learn from 30 historical figures, open source, nonprofit, self-hosted

Re:Show HN: Learn from 30 historical figures, open source, n... by lavaman131 on Wednesday June 10, 2026 @03:54AM (#48472972)

This is interesting way of presenting content and I do feel like engaging educational content is a valuable thing to work on. For the historical figures, how are you handling grounding the facts/reducing hallucinations that may conflict with historical accuracy? Also do you plan on making it possible for people to add their own historical figures like a registry of sorts?

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Re:Show HN: Learn from 30 historical figures, open source, n... by micstradev on Wednesday June 10, 2026 @05:16AM (#48473630)

Thank you. A lot of our content is pre-created and not live generated. Every figure has a fact check modal, which can also be fetched via CDN, for example:

https://media.agoracosmica.org/factchecks/en/jung.json

For the live generated content, sure, we cannot rule out hallucinations. From testing it feels like a grounded instruction helps, but to be honest we have not measured it. Therefore we have the "Echo" framing, disclaimers on the landing pages, and checkboxes when entering the app.

A registry is not planned because every figure needs a lot of pre-created content. As mentioned in another comment we plan to add more figures in the future, but we will let the community decide which one.

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Re:Show HN: Learn from 30 historical figures, open source, n... by lavaman131 on Saturday June 13, 2026 @01:41AM (#48513707)

Got it, thanks!

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