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Show HN: LocalGPT – A local-first AI assistant in Rust with persistent memory

https://github.com/localgpt-app/localgpt
164•yi_wang•5h ago•51 comments

OpenClaw Is Changing My Life

https://reorx.com/blog/openclaw-is-changing-my-life/
8•novoreorx•1h ago•3 comments

Haskell for all: Beyond agentic coding

https://haskellforall.com/2026/02/beyond-agentic-coding
80•RebelPotato•5h ago•19 comments

SectorC: A C Compiler in 512 bytes (2023)

https://xorvoid.com/sectorc.html
270•valyala•13h ago•51 comments

Total surface area required to fuel the world with solar (2009)

https://landartgenerator.org/blagi/archives/127
33•robtherobber•4d ago•37 comments

Software factories and the agentic moment

https://factory.strongdm.ai/
209•mellosouls•16h ago•360 comments

Speed up responses with fast mode

https://code.claude.com/docs/en/fast-mode
172•surprisetalk•13h ago•165 comments

LLMs as the new high level language

https://federicopereiro.com/llm-high/
76•swah•4d ago•139 comments

The world heard JD Vance being booed at the Olympics. Except for viewers in USA

https://www.theguardian.com/sport/2026/feb/07/jd-vance-boos-winter-olympics
60•treetalker•21m ago•13 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
184•AlexeyBrin•19h ago•35 comments

Brookhaven Lab's RHIC concludes 25-year run with final collisions

https://www.hpcwire.com/off-the-wire/brookhaven-labs-rhic-concludes-25-year-run-with-final-collis...
76•gnufx•12h ago•60 comments

The Architecture of Open Source Applications (Volume 1) Berkeley DB

https://aosabook.org/en/v1/bdb.html
10•grep_it•5d ago•0 comments

Stories from 25 Years of Software Development

https://susam.net/twenty-five-years-of-computing.html
177•vinhnx•16h ago•18 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
331•jesperordrup•23h ago•99 comments

First Proof

https://arxiv.org/abs/2602.05192
139•samasblack•15h ago•81 comments

Substack confirms data breach affects users’ email addresses and phone numbers

https://techcrunch.com/2026/02/05/substack-confirms-data-breach-affecting-email-addresses-and-pho...
31•witnessme•2h ago•9 comments

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

https://github.com/Momciloo/fun-with-clip-path
87•momciloo•13h ago•18 comments

Wood Gas Vehicles: Firewood in the Fuel Tank (2010)

https://solar.lowtechmagazine.com/2010/01/wood-gas-vehicles-firewood-in-the-fuel-tank/
36•Rygian•2d ago•11 comments

Vouch

https://twitter.com/mitchellh/status/2020252149117313349
81•chwtutha•4h ago•22 comments

Al Lowe on model trains, funny deaths and working with Disney

https://spillhistorie.no/2026/02/06/interview-with-sierra-veteran-al-lowe/
109•thelok•15h ago•24 comments

Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
593•theblazehen•3d ago•214 comments

Show HN: A luma dependent chroma compression algorithm (image compression)

https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-...
42•mbitsnbites•3d ago•5 comments

LineageOS 23.2

https://lineageos.org/Changelog-31/
6•pentagrama•1h ago•0 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
316•1vuio0pswjnm7•20h ago•514 comments

FDA intends to take action against non-FDA-approved GLP-1 drugs

https://www.fda.gov/news-events/press-announcements/fda-intends-take-action-against-non-fda-appro...
116•randycupertino•8h ago•243 comments

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

https://openciv3.org/
908•klaussilveira•1d ago•277 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
161•speckx•4d ago•245 comments

Selection rather than prediction

https://voratiq.com/blog/selection-rather-than-prediction/
36•languid-photic•4d ago•18 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
304•isitcontent•1d ago•39 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
314•dmpetrov•1d ago•159 comments
Open in hackernews

Show HN: Interactive physics simulations I built while teaching my daughter

https://www.projectlumen.app/
87•anticlickwise•2w ago
I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action.

She learned so much faster through hands-on exploration than through books or videos. That's when I realized: what if I could recreate these physical experiments as interactive simulations?

Lumen is the result - an interactive physics playground covering sound, light, motion, life, and mechanics. Each module lets you manipulate variables in real-time and see/hear the results immediately.

Try it: https://www.projectlumen.app/

Comments

tetris11•2w ago
This is pretty nice! I was quite impressed with the colour mixing one in particular

(At the same time I was reminded a bit by the subtext of the web series Don't Hug Me I'm Scared, especially when pumping the heart to deliver body's needed cargo, like aspic and white sauce -- but that's just my brainrot showing)

I can imagine this being pretty fun on a tablet

anticlickwise•2w ago
yes. This was designed for the Ipad
vibefarm•2w ago
wholesome :)
spuz•2w ago
Not sure if it's just Firefox, but a lot of things seem to be rendering incorrectly and very slowly for me. The text for the descriptions is very small compared to the rest of the text which makes it kind of hard to read. Also, on the Spectrum demo, the prism is displayed up and to the left of the light rays. After a few minutes the pages just grind to a halt so I can't really explore the rest.
mzajc•2w ago
It's not just Firefox, a lot of things are broken. For example, clicking on either ball in "The Falls" moves it up and lets you drag it, but they snap into the same place. The text also reminds me of how ChatGPT writes. Was this made with a LLM?
languid-photic•2w ago
Fun! Any plan to open source it?
rahimnathwani•2w ago
Kudos! I love seeing things people have built for their kids.

This reminds me a bit of this site, which has been around for a long time and has a similar motivation: teach physics concepts using simulations:

https://phet.colorado.edu/en/simulations/filter?subjects=phy...

tehlike•2w ago
Not the same level - but teaching my kid to use keyboard, and i vibecoded this: https://ai.studio/apps/drive/1MErVnhhK89peNh1RPa3y-ufFExG5Bn...
rahimnathwani•2w ago
This is cool!

I'm curious whether you're using this to teach initial familiarity, or as the first step toward touch typing?

For touch typing, I think Typing Club is a good place to start for kids. And then Keybr to develop full fluency. And then Monkeytype to develop speed.

EDIT - when I wrote this comment I had only opened the link on my phone. Now I see it on desktop it's clear that the on-screen keyboard is intended to teach key positions without the user looking down at their keyboard. It's good.

mncharity•2w ago
In case anyone else was curious, `ai.studio/apps` apps apparently require a google account login by default. Google ai-mode says allowing public access is an author option, but then (1) API costs are borne by the author, and (2) there are some (unclear) compliance implications.
anticlickwise•2w ago
This is cool
thimkerbell•2w ago
Extra points if its homepage can offer informative 80-character descriptions. (What is the term for this (suggested) web design?)
gfaure•2w ago
I wish it were possible to link to a particular page (e.g. the optics simulation).
jastanton•2w ago
Love this, simulations are great. My nit pick is around how fast these animations are. You blink and you miss it. I can imagine children having more difficult time with this than myself as an adult. (For context I started with the sound animations: The Invisible Dance -- Shape the Wave & The Journey)
anticlickwise•2w ago
will work on slowing it down
admiralrohan•2w ago
Looking great. Having some context on the pages would be great, I can understand the grass-rabbit-fox dynamics but not clear with the the rest of the simulations.

And you can persist the page in query param. So someone can directly sent people to particular simulation with data.

anticlickwise•2w ago
I am adding more context soon.

I will work on the url query param persistence - I know its annoying at the moment

mncharity•2w ago
Two quick errata: In Sound / Biology, a control inversion: low pitch (slider and sound) animates blue short hairs, and high pitch animates long red. In the windtunnel > Wing, lift is reported but the airstream remains undeflected.[1]

[1] randomly, fwiw, I've used cloud deck slicing to illustrate downdraft, eg https://imgur.com/4hhZ7zq https://www.youtube.com/watch?v=0HIddtgGzDE . Or perhaps moments of "yoink" like... err, https://www.youtube.com/watch?v=dfY5ZQDzC5s&t=154s .

anticlickwise•2w ago
Yes. I will have to get the physics right for the air stream. will work on that. Thanks
nemath•2w ago
Very cool!
imtringued•2w ago
I spotted a bug: "The Tiny City > The Web"

You should use the rabbit emoji instead: https://www.compart.com/en/unicode/U+1F407

rajkumar14•2w ago
Unrelated to the question you posted, but how are you testing these PCBs? Specifically, are you using any software architecture for data logging and running tests?