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Show HN: Sanctum – An LLM-Guided Learning App

1•JTan2231•8mo 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.

Show HN: Fabi 2.0 – An AI analyst that connects to all your data sources

1•mfdupuis•26s ago•0 comments

There's a Limit to How Many Calories Humans Can Burn–Even Ultramarathoners

https://www.wsj.com/science/ultramarathon-metabolic-ceiling-limit-calories-burn-study-e4e2c8cc
1•fortran77•54s ago•1 comments

SQL for RAG

https://docs.shaped.ai/docs/v2/query_reference/shapedql/
1•skelts•1m ago•0 comments

Show HN: Soklet, a zero-dependency Java HTTP/1.1 and SSE virtual-threaded server

https://soklet.com/
1•revetkn•1m ago•0 comments

Screw-Thread Cutting by the Master-Screw Method Since 1480

https://freechaptersinbooks.wordpress.com/2012/09/18/screw-thread-cutting-by-the-master-screw-met...
1•o4c•2m ago•0 comments

Sinner's Circle

https://en.wikipedia.org/wiki/Sinner%27s_circle
1•o4c•3m ago•0 comments

Show HN: Shimmytok – Pure Rust GGUF tokenizer (no C++, no extra files)

https://github.com/Michael-A-Kuykendall/shimmytok
1•MKuykendall•3m ago•0 comments

Show HN: ModernPentest – Continuous automated pentesting for web apps and APIs

https://modernpentest.com/
1•victor_y•4m ago•1 comments

How Is Niri This Good? Live Demo and Config

https://nickjanetakis.com/blog/how-is-niri-this-good-live-demo-and-config
1•nickjj•4m ago•0 comments

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https://testflight.apple.com/join/cVxV1W3g
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How to Say – A crowd-sourced pronunciation guide for tech terms

https://howtosay.io
3•sc0tfree•6m ago•0 comments

A 4-part deep dive on building AI code edits inside VS Code

https://docs.getpochi.com/developer-updates/#nov-19-2025
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Yann LeCun's startup's pitch deck

https://sifted.eu/articles/pitch-deck-yann-lecun-ami-labs
1•warthog•7m ago•0 comments

The Tulip Creative Computer

https://github.com/shorepine/tulipcc
2•apitman•8m ago•0 comments

Ask HN:500 citation EU MSc CS, stuck in a low-trust region. How to move forward?

2•throwawaysafely•9m ago•0 comments

Only Steal from the Best

http://scripting.com/2026/01/12/201606.html?title=onlyStealFromTheBest
1•7777777phil•10m ago•0 comments

Show HN: CloudSlash – Graph-based AWS cleaner with Terraform undo

1•drskyle•11m ago•0 comments

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https://github.com/DmitryBochkarev/tsrun
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https://www.youtube.com/watch?v=NV02r1Y1B-8
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https://jeffverkoeyen.com/blog/2026/01/13/WYSIWYG/
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Firefox 147.0

https://www.firefox.com/en-US/firefox/147.0/releasenotes/
1•l2dy•12m ago•0 comments

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https://www.youtube.com/watch?v=SVDIJTPMzt8
2•MarkusAllen•13m ago•1 comments

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https://mauriciopoppe.github.io/SubtitleInsights/
1•maurizzzio•13m ago•0 comments

Brendan Foody on Teaching AI and the Future of Knowledge Work

https://conversationswithtyler.com/episodes/brendan-foody/
1•gmays•13m ago•0 comments

90M people. 118 hours of silence. One nation erased from the internet

https://state-of-iranblackout.whisper.security/
3•silencednetizen•13m ago•0 comments

OpenAI buys tiny health records startup Torch for, reportedly, $100M

https://techcrunch.com/2026/01/12/openai-buys-tiny-health-records-startup-torch-for-reportedly-100m/
1•eamag•14m ago•0 comments

Ask HN: Looking for Windows contributors for meeting-detection engine

1•Ayobamiu•14m ago•0 comments

SkyRoof: A Windows application for Hams and satellite enthusiasts

https://ve3nea.github.io/SkyRoof/index.html
1•eustoria•15m ago•0 comments

Read the Clintons' Personal Letter to Comer

https://www.nytimes.com/interactive/2026/01/13/us/clinton-letter.html
2•ripe•15m ago•1 comments