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Show HN: Sanctum – An LLM-Guided Learning App

1•JTan2231•9mo 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.

S3lite – A SQLite-like database engine with S3-compatible storage back end

https://github.com/sjcotto/s3lite
1•sjcotto•6m ago•0 comments

A Thick-Skulled Troodontid Theropod from the Late Cretaceous of Mexico

https://www.mdpi.com/1424-2818/18/1/38
1•PaulHoule•7m ago•0 comments

Cloud and AWS cost consultant Duckbill expands to software, raises $7.75M

https://www.geekwire.com/2026/cloud-and-aws-cost-consultant-duckbill-expands-to-software-raises-7...
1•mooreds•8m ago•0 comments

DBML: DSL for easily creating ER diagrams

https://dbml.dbdiagram.io/home/
1•todsacerdoti•8m ago•0 comments

How AI is affecting productivity and jobs in Europe

https://cepr.org/voxeu/columns/how-ai-affecting-productivity-and-jobs-europe
2•pseudolus•10m ago•0 comments

8086 Agentic AI Assembler Tool

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1•cookertron•11m ago•0 comments

Apollo Seeks to Reassure Clients About Rowan's Epstein Ties

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1•petethomas•17m ago•0 comments

China Is Killing the Fish

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Gemini JiTOR Jailbreak: Unredacted Methodology

https://recursion.wtf/posts/jitor_unredacted/
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Dwarkesh Patel's 2026 Podcast with Elon Musk and Other Recent Elon Musk

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1•paulpauper•18m ago•0 comments

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https://www.joelonsoftware.com/2000/04/06/things-you-should-never-do-part-i/
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Chief: Delightfully Simple Agentic Loops

https://www.geocod.io/code-and-coordinates/2026-02-18-introducing-chief/
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https://www.youtube.com/watch?v=TYe9DSPuCaE
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https://apps.apple.com/us/app/devly/id6759269801?mt=12
1•aarush-prakash•23m ago•0 comments

Tourists no longer allowed to take JLPT in Japan from 2026

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2•mikhael•24m ago•1 comments

Grandson of Reese's Peanut Butter Cups inventor says Hershey is cutting corners

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5•petethomas•25m ago•1 comments

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https://github.com/nicallen-exd/sanna
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1•YorickPeterse•31m ago•0 comments

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https://github.com/Tanyayvr/agent-qa-toolkit
1•Tanyayvr•31m ago•0 comments

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1•sharjeelsayed•34m ago•0 comments

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2•ghostclaw-cso•35m ago•0 comments

A Primer of Mathematical Writing

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FastMCP 3.0 Is GA

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4•jlowin•39m ago•0 comments

My attempt at creating Excel Style Markdown Editor (especially for tables)

https://lscherub.github.io/markdown-table-editor/
3•heckifIknow•39m ago•1 comments

The economics of offshoring in the software industry (2003)

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1•johntfella•39m ago•0 comments

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AI Slop Is Caused by Humans, Not AI's

https://rodyne.com/?p=3771
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https://www.openstreetmap.org/user/SomeoneElse/diary/408252
1•altilunium•43m ago•0 comments