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

https://github.com/localgpt-app/localgpt
248•yi_wang•10h ago•122 comments

Show HN: Real-time path tracing of medical CT volumes in the browser via WebGPU

https://grenzwert.net/
2•MickGorobets•33m ago•1 comments

Show HN: Portview, A diagnostic-first port viewer for Linux (~930 KB, zero deps)

https://github.com/Mapika/portview
5•Mapika•42m ago•0 comments

Show HN: Google Maps but for your repo (Open Source)

https://github.com/zacharykapank/repomap
2•zacharykapank•55m ago•0 comments

Show HN: Elysia JIT "Compiler", why it's one of the fastest JavaScript framework

https://elysiajs.com/internal/jit-compiler
2•saltyaom•2h ago•0 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
119•momciloo•18h ago•28 comments

Show HN: HalalCodeCheck – Verify food ingredients offline

https://halalcodecheck.com/
3•pythonbase•2h ago•0 comments

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

https://github.com/valdanylchuk/breezydemo
315•isitcontent•1d ago•40 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-...
53•mbitsnbites•4d ago•7 comments

Show HN: WeaveMind – AI Workflows with human-in-the-loop

https://weavemind.ai
10•quentin101010•3h ago•2 comments

Show HN: Analyzing 9 years of HN side projects that reached $500/month

5•haileyzhou•3h ago•2 comments

Show HN: Kybera – Agentic Smart Wallet with AI Osint and Reputation Tracking

https://kybera.xyz
4•xipz•4h ago•0 comments

Show HN: Free Bank Statement Analyzer to Find Spending Leaks and Save Money

https://www.whereismymoneygo.com/
2•raleobob•4h ago•1 comments

Show HN: A2A Protocol – Infrastructure for an Agent-to-Agent Economy

2•swimmingkiim•4h ago•1 comments

Show HN: Solnix – an early-stage experimental programming language

https://www.solnix-lang.org/
4•maheshbhatiya•4h ago•0 comments

Show HN: OpenCode for Meetings

https://getscripta.app
3•whitemyrat•5h ago•1 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

https://github.com/sandys/kappal
46•sandGorgon•3d ago•28 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
101•antves•2d ago•71 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
89•phreda4•1d ago•17 comments

Show HN: Open-source AI powered Kubernetes IDE

https://github.com/agentkube/agentkube
2•saiyampathak•6h ago•0 comments

Show HN: Lucid – Use LLM hallucination to generate verified software specs

https://github.com/gtsbahamas/hallucination-reversing-system
2•tywells•6h ago•0 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
383•eljojo•1d ago•219 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
379•vecti•1d ago•174 comments

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

https://github.com/artifact-keeper
161•bsgeraci•2d ago•66 comments

Show HN: BioTradingArena – Benchmark for LLMs to predict biotech stock movements

https://www.biotradingarena.com/hn
32•dchu17•1d ago•13 comments

Show HN: High-performance bidirectional list for React, React Native, and Vue

https://suhaotian.github.io/broad-infinite-list/
2•jeremy_su•9h ago•0 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
57•nwparker•2d ago•13 comments

Show HN: Gigacode – Use OpenCode's UI with Claude Code/Codex/Amp

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
27•NathanFlurry•1d ago•11 comments

Show HN: A free, browser-only PDF tools collection built with Kimi k2.5

https://pdfuck.com
4•Justin3go•2h ago•0 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
174•vkazanov•3d ago•50 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?