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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
624•klaussilveira•12h ago•182 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
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What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
32•helloplanets•4d ago•24 comments

How we made geo joins 400× faster with H3 indexes

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109•matheusalmeida•1d ago•27 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
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Unseen Footage of Atari Battlezone Arcade Cabinet Production

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40•videotopia•4d ago•1 comments

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219•isitcontent•13h ago•25 comments

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https://github.com/pydantic/monty
210•dmpetrov•13h ago•103 comments

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https://vecti.com
322•vecti•15h ago•143 comments

Sheldon Brown's Bicycle Technical Info

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369•ostacke•18h ago•94 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
358•aktau•19h ago•181 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
477•todsacerdoti•20h ago•232 comments

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https://eljojo.github.io/rememory/
272•eljojo•15h ago•160 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
402•lstoll•19h ago•271 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
85•quibono•4d ago•20 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
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https://mirageos.org/blog/delimcc-vs-lwt
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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
3•theblazehen•2d ago•0 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
56•kmm•5d ago•3 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
12•bikenaga•3d ago•2 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
243•i5heu•15h ago•188 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
52•gfortaine•10h ago•21 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
140•vmatsiiako•17h ago•62 comments

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https://visualrambling.space/neural-network/
280•surprisetalk•3d ago•37 comments

I now assume that all ads on Apple news are scams

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1058•cdrnsf•22h ago•433 comments

Why I Joined OpenAI

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132•SerCe•8h ago•117 comments

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70•phreda4•12h ago•14 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

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28•gmays•7h ago•10 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
176•limoce•3d ago•96 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
63•rescrv•20h ago•22 comments
Open in hackernews

Valori – A Python-native Vector Database I built from scratch

9•varshith17•2mo ago
I’ve been working on a project called Valori, a Python-native vector database I built from the ground up — not by reinventing every algorithm, but by wiring together efficient, well-known indexing and search techniques into a cohesive, hackable framework.

The idea came from my frustration with existing vector DBs that were either too heavy for experimentation or too opaque to modify. I wanted something simple, modular, and extensible — so I built it.

What it does:

Lets you store, index, and search high-dimensional vectors

Supports multiple indices (Flat, HNSW, IVF, LSH, Annoy)

Has memory, disk, and hybrid storage backends

Includes a full document processing pipeline (parsing, cleaning, chunking, embedding)

Offers quantization, persistence, and plugin-based extensibility

All written in Python, integrated with NumPy, and production-tested with logging and monitoring built in.

Install:

pip install valori

GitHub: https://github.com/varshith-Git/valori

PyPI: https://pypi.org/project/valori

I’d love to hear your thoughts —

What’s missing for you in current vector DBs?

If you’ve built LLM or RAG systems, what do you wish a lightweight, pure Python DB like this handled better?

Would you prefer tighter integrations (LangChain, Haystack, etc.) or a more “build-it-yourself” style?

Feedback, criticism, or collaboration ideas are all welcome. — Varshith (varshith.gudur17@gmail.com )

Comments

varshith17•2mo ago
PYPI: https://pypi.org/project/valori/

Github: https://github.com/varshith-Git/valori

https://valori-python-vector-db.lovable.app/

bendtb•2mo ago
What’s the advantage if this being in python?
steffann•2mo ago
I think the “simple, modular, and extensible” makes this interesting. And for those, it being written in Python are relevant.
varshith17•2mo ago
Exactly Python makes the whole stack composable instead of compiled shut. That’s where the fun (and flexibility) lives.
varshith17•2mo ago
The point isn’t raw speed it’s hackability. You can plug in new models or indexing layers in minutes without dropping to C++.
redskyluan•2mo ago
dude you already missed the window.

nothing is better than sqlite as a library and don't use high perforamnce as your value for a python product

varshith17•2mo ago
SQLite’s perfect if you’ve got rows and tables. Valori’s for when you’ve got embeddings and chaos.
mattfrommars•2mo ago
how much was this vibe coded? looks cool but its too much for me to digest.

where did you get the original mental model to begin building it?

varshith17•2mo ago
It’s definitely dense, but not as wild as it looks. The mental model was: take the core building blocks from FAISS and Milvus, make them composable in Python, and expose everything clearly.

The “vibe” part came from trying to make it feel like a system that could run in production, not just a toy. So yeah, it’s a little heavy, but it earned the vibe honestly.

luke-stanley•2mo ago
I am very picky, hard to place, but from a quick look at the README, I'd say the API interface on display seemed like the right level of abstraction for having to deal with the messy reality.

Since you're asking for feedback:

- perhaps some of the document type specific dependencies by optional?

- could there be LESS config surface?

- I noticed GitHub CI action has a cross.

It's good to add how to use with Astral "uv" these days, especially anything that might pull in PyTorch dependency hell, which they have mostly solved if used correctly!

Nice work!

varshith17•2mo ago
Love this kind of feedback, thank you. You nailed it on optional deps and config sprawl; I’m trimming both. CI cross is just coverage noise, and I’ll add uv setup notes it really cleans up the PyTorch mess. Glad the API felt right — that was the hardest part to get “just enough abstraction” right.