ARC-AGI-3 Toolkit

Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone

Life & fun · 28d ago · photosynthesis.camera

Take control of hair pulling, nail biting & skin picking

Life & fun · 28d ago · solouno.io

Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

Life & fun · 26d ago · everycube.alen.is

The Interactive 3D Encyclopedia

Life & fun · 21d ago · expeditione.fun

Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

Life & fun · 26d ago · baselashraf81.github.io

Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http:&#x2F;&#x2F;cannoneyed.com&#x2F;projects&#x2F;isometric-nyc

AI · Jan 2026 · cannoneyed.com

Turn Claude into your digital coworker

AI · Jan 2026 · claude.com

Revenue-first analytics

Growth · Jan 2026 · datafa.st

The AI that actually does things

AI · Jan 2026 · openclaw.ai

Automatic AI-powered code reviews the moment you open a PR

Dev tools · Jan 2026 · kilo.ai

AI Content Maker, for Social Media Publishing

AI · Jan 2026 · postsyncer.com