
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

Cloud browser infrastructure helping AI agents automate web tasks at scale.
lexmount · GitHub
moli Best browser for AI agents, built in Rust.

Drop or spit objects and measure the fall height using real physics simulation.
u/daboehla · Reddit
I built a web app that measures how high you can spit (or drop anything) using real physics Hey 👋 I made a silly web app called Spuckometer: you drop or spit something, tap to time the fall, and it calculates the height — using a real physics sim with air resistance, so a spit blob gives a different result than a stone. It's a PWA, vanilla JS, no framework, no sign-up. Built it mostly for fun (and to play with the drag physics). There's a mascot named Klaus whose eyes follow your cursor 👀

A cautious educational guide to post-exercise musculoskeletal pain, warning signs, and gentle stretching.
@isac8964 · X
我的physio guide网站上线了,本网站通过肌肉疼痛位置,疼痛强度来分析并推荐重复性运动后的拉伸缓解和康复,并评估不适宜拉伸以及建议就医的情况! 疼痛位置会尽量定位到特殊肌肉或肌群。欢迎大家使用这个网站!这是我第一次制作这样的工具,欢迎通过尾页联系方式提出改进建议!也欢迎大家推荐我去做其他的健康自查工具,我们一起努力~

Build applications with AI-powered vibe coding.
@Craftapp_AI · X
Six Capabilities a Real Vibe Coding Platform Must Have, Or You're Wasting Time and Money Building a demo is easy. Building a real product is where platforms fall apart. Watch the full video on YouTube: Build with CraftApp today:

Organize your tools, workflows, and resources into one accessible workspace.
@mj_jimmi · X

Hand-crafted React components and templates for building polished user interfaces.
@polyqoy · X
This video shows a fully animated 3D site built in 2 minutes with claude code. one terminal command. but the prompt was almost irrelevant. the real work was the pre-load: ui/ux pro max skill, a hero component from framer motion stacked in before claude touched anything the toolkit did the job. the prompt just pulled the trigger. that's also why most people's claude output looks generic. they skip the setup and blame the model.

Interactive linear algebra tutor where you solve matrix problems with real-time AI hints.
u/CarefulArmadillo3496 · Reddit
SparkGap - an agentic linear algebra experience Hey everyone, I'm building sparkgap.ai , an interactive tutor for linear algebra. You fill in the matrices/vectors, the LLM gives you hints until you get it correct. The hope is that it will get smarter over time from the context of which questions were missed/answered correctly. As you master concepts, the progress ring next to each concept will slowly fill in. Hopefully it should be very difficult to get to full mastery. Feedback and qu

Pauli Exclusion principle https://t.co/Wjuo0NnVQE I vibe coded this just now to try to understand atoms. Any good? Electrons need work.
@tomachi · X
Pauli Exclusion principle I vibe coded this just now to try to understand atoms. Any good? Electrons need work.

Create GPU-accelerated video effects and motion graphics using a visual graph and code interface.
LOVELYZOMBIEYHO

Build your engineer profile and let AI generate your professional description.
skellertor · HN
Show HN - Online developer profiles with embedded AI hypeman

Design and simulate chemical processes with AI assistance for education and research.
@IbehOmodolor · X