
systemInPain
Build and scale systems in an interactive simulator to learn system design.
@echo_muss · X
Learn system design Try
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Build and scale systems in an interactive simulator to learn system design.
@echo_muss · X
Learn system design Try


Play an interactive horror experience inspired by the P.T. demo.
@mrcndrw · X
Hands down, still the best thing I've built with Claude Code... A homage to the awesome P.T. Demo by the legendary @HIDEO_KOJIMA_EN

Sigue tu cartera de acciones, ETFs, opciones y dividendos desde Interactive Brokers, DEGIRO, ING o tastytrade. Calendario de P&L, diario de operaciones y dividendos, en español. De
@tortuga_trades · X

Free AI tutor for kids aged 7-9 that personalizes lessons in coding and technology through interactive games.
u/Designer_Process_715 · Reddit
I built a free AI tutor for kids that remembers each kid and makes learning feel like a game I'm a software engineer and dad of three. My two older kids were deep in YouTube Shorts and Roblox, and I didn't mind the screen — I minded that they walked away with nothing. So over the last ~7 months I built the thing I wished existed. It's called Aivie Spark. My favorite moment testing it: my son hit a Boss Challenge on a math topic and got stuck. Instead of giving up — or getting the answer

Practice algorithms and coding skills through interactive challenges where AI agents build and test your code.
u/Death12th · Reddit
Free consumer product, seat-based education product, enterprise assessment product. Same codebase. Is this survivable? Three motions off one core. Students practice free and generate cost, not revenue. Educators pay per seat. Hiring teams are the expensive product and the reason any of it matters. The free tier feeds both paid ones and that's the only thing justifying it. Education is slow, cheap, sticky. Hiring is faster, pricier, and churns the second the role gets filled. Billing got

Record and publish interactive product demos for sales and training.
jakegargaro17 · HN
Interactive Product Demos made easy

AI assistant that answers team questions from shared context with sources.
@nav_ux · X
Get your whole team's AI on the same page.

Build interactive forms that display information and collect feedback with no code or hosting fees. Unlimited forms, unlimited submissions, free.
u/Lucky_Head8075 · Reddit
I removed the signup wall from my form builder and conversion is improving Ive been working on a form builder and recently started looking more closely at where people were dropping off. One obvious source of friction was the sign-up requirement. Previously, somone would land on the site and need to create an account before they could properly try the form builder. So I decided to experiment with progressive sign-up with supabase instead. The idea is pretty simple: let people experience

Browse and use free animated React components to build interactive UIs.
@react_bytes · X
Just launched 🚀 Built this from scratch - would love for you to check it out and let me know what you think! 🔗 #buildinpublic #webdev

Interactive 3D tour of a feedforward neural network showing how layers process information.
aithena · HN
A walkable 3D tour of a feedforward neural net

Explore world history through an interactive map of civilizations, empires, and historical figures.
@_heysumit · X
Just shipped an interactive world explorer. watch empires rise, discover notable historical figures, and explore ancient places. live: #buildinpublic #nextjs #webdev #ai