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Show HN: Sanctum – An LLM-Guided Learning App

1•JTan2231•1y ago
https://apps.apple.com/us/app/athenaeum-sanctum/id6744429496

It's in an infant stage as I figure out exactly how I want this.

In a more marketing speech style,

---

I love learning things and soaking in information, but I constantly run into 3 ergonomic problems with doing so:

- Quality study materials are often so dense as to require an extended session of focus

- Ergonomic study materials require too much work to find + aren't always flexible to what I want to learn/study

- Social media feeds have rotted my UI tastes to prefer short-form, transient interfaces that build familiarity with repeated, intermittent exposure

So, I'm making a flashcard app to address these points. In short,

- Reference-based deck generation

  - LLMs are great, but human sources are always best.

  - Give it a PDF or web page, and it'll reference that resource in creating your deck

 - AI-powered grading

  - The vector math powering LLMs allows for much more loosely structured answer grading than just naive keyword matching.

  - Know the concept, but can't phrase it in the colloquial terms? Don't worry, phrase it as best you can and it can tell how well you get the idea.

 - Natural deck progression

  - If you've been performing well enough on a deck, take a quiz to see if you're ready to expand the flashcards in your study.
---

There are a few things I still am looking to iron out:

- I don't think flashcards are the optimal UI for learning

  - They're great for memorizing + I do think improving pattern-matching is essentially learning is, but I don't think flashcards are the most optimal vehicle for meaningful learning

  - i.e., Life is more than just trivia
- Personalization

  - Right now, you take a quiz to expand the deck along the same lines as the existing subject matter. I think this is okay at best and could very much be improved.

  - One of the ideas I had initially around this is that LLMs can be used to traverse the embedding space of accumulated knowledge in a way that subverts/transcends the traditional academic taxonomization of studies. 

  - i.e., I think UI is the bottleneck in soaking in more information/ideas. I think LLMs do well enough in pattern-matching requests to information that they could act as librarians for the internet--then, it's just a matter of scrunching down the information into more convenient interfaces (e.g., mobile).
- Sourcing, references, etc.--I prefer something human-made at the other end of the tunnel, but I'm not sure how long that will last.

- The name--far too esoteric

This is an active WIP--would love to hear what you all think.

The AI coding maturity scale

https://blog.codacy.com/the-ai-coding-maturity-scale-the-path-to-loop-engineering
1•claudiacsf•1m ago•0 comments

DOE Deletes Webpage Instructing People to Lower Thermostat to 78 – Newsweek

https://www.newsweek.com/doe-deletes-webpage-instructing-people-to-lower-thermostat-to-78-12153833
1•xnx•1m ago•0 comments

The Download: a smoking "endgame" and a new Elizabeth Bear story

https://www.technologyreview.com/2026/07/03/1140134/the-download-uk-smoking-ban-elizabeth-bear-st...
1•joozio•2m ago•0 comments

The Contribution I Was Sure Would Work, and Killed

https://medium.com/@alanscottencinas/the-contribution-i-was-sure-would-work-and-killed-b9667fdd53cc
1•encinas88•3m ago•0 comments

Built a 2007 like video website (CastIn2007)

https://cast-in2007.edgeone.app/
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https://bricolage.io/essential-until-it-wasnt/
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https://sal4rkhn.substack.com/p/why-the-future-of-ai-is-dumb-and
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1•mridul_sahu•7m ago•0 comments

Gov. Greg Abbott calls for ban on data center devel in rural Texas neighborhoods

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1•1vuio0pswjnm7•8m ago•0 comments

Why PostHog rebuilt its data warehouse on DuckDB instead of ClickHouse

https://posthog.com/blog/why-we-rebuilt-our-data-warehouse
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Instagram running ads promoting child sexual abuse material in India, BBC finds

https://www.bbc.com/news/articles/cvgm4e0316zo
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The Pains of Installing Windows '98 on a "Modern" Machine (2014)

https://www.nostalgianerd.com/windows-98-modern-machine/
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Stern: Multi pod and container log tailing for Kubernetes

https://github.com/stern/stern
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https://github.com/kerlenton/mcpsnoop
1•kerlenton•9m ago•0 comments

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https://github.com/hamza-ali-shahjahan/hamzaish
1•hamza_ali_shah•10m ago•0 comments

Tesla stock sinks 7% despite strong deliveries report, worst day in nearly 1y

https://www.cnbc.com/2026/07/02/tesla-tsla-q2-2026-vehicle-delivery-production.html
2•1vuio0pswjnm7•11m ago•0 comments

Dropping in on Gottfried Leibniz (2013)

https://writings.stephenwolfram.com/2013/05/dropping-in-on-gottfried-leibniz/
1•aragonite•12m ago•0 comments

Contextual Information Retrieval

https://luccogzest.substack.com/p/contextual-information-retrieval
1•LucCogZest•12m ago•0 comments

China boosts prestigious grants for young scientists, will it ease competition?

https://www.nature.com/articles/d41586-026-01989-5
1•Bender•13m ago•0 comments

This is nuts upon nuts. When's the crash?

https://www.ft.com/content/8e9337f8-9191-48e9-9289-a8defda89431
1•petethomas•13m ago•0 comments

A chatbot told us SpaceX never went public, 20 days after their IPO

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1•harpreetseehra•17m ago•0 comments

Russian fuel crisis prompts rush for Chinese electric cars

https://www.reuters.com/business/energy/russian-fuel-crisis-prompts-rush-electric-cars-2026-07-02/
2•JumpCrisscross•18m ago•0 comments

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1•dmatth1•20m ago•1 comments

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1•brudevel•24m ago•0 comments

The wine made by British monks that's making bank

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1•paulpauper•24m ago•0 comments

The $10k MacBook Pro Is Here

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1•paulpauper•24m ago•0 comments