amclennon · HN

Poorleton – AI Generated Cycling Workouts

x1shir · V2EX

HowToWhistle：像唱 KTV 一样练习吹口哨 一直想提高吹口哨技巧，搜了一圈发现网上的教程都是文字和视频，练的时候根本不知道自己吹得对不对。 想到可以像 KTV 一样，有个音轨对比，于是干脆自己搓了一个练习网站：[https://howtowhistle.org/]( https://howtowhistle.org/) 核心思路是用浏览器的麦克风做实时音高检测，你对着麦克风吹，页面会显示你当前的音高和目标音的偏差，类似 KTV 唱歌时的实时评分。功能大概有： - 实时音高反馈，能看到自己吹的是哪个音、偏高还是偏低 - 从单音长音开始的渐进式练习，到音阶、再到简单旋律 - 纯前端实现，声音不上传，无需注册 目前还比较简陋，欢迎大家试玩和提建议。

@GuidedBase · X

@GasimGasimzada · X

Just shipped two updates to ✅ Full offline support ✅ Drag-and-drop item reordering Going fully offline was surprisingly straightforward because the app was already built local-first. #BuildInPublic #Productivity #WebApp

Tomas_Metcalfe · HN

I've built a fitness app that derives exercise kinematics from ordinary video I ran Reddit ads recently. They generated very good click-through rates, but essentially no signups. I will be honest, I had not given onboarding a single thought till the app was mostly built… Hence I put together the landing page, demo and map app with training spots and “bar bounty” leaderboards, these parts were made with AI tools. The rest was a 2.5 year slog built on decades of coding, sport science , and AI sinc

ramoz · HN

Code walkthroughs you can send as a file

u/NicoRide2026 · Reddit

I got tired of needing 5 different apps to understand my training — so I built Sumenia I cycle and run, and one thing kept bothering me: My training data was everywhere. Garmin recorded it. Strava made it social. Komoot helped with routes. Other tools gave me charts and training metrics. But I still had to connect the dots myself. So I started building Sumenia . The idea is simple: one place that doesn't just collect your training data, but helps you understand what i

u/cuzintheboss · Reddit

I built a white-label coaching app so personal trainers can have "their own app" without hiring a dev team Been building this solo for a while and finally have it live, would love a gut check from this crowd. The problem I kept hearing from online fitness coaches: they either duct-tape their business together across spreadsheets, a macro calculator, a group chat, Zoom, and some invoicing tool. So the whole product is built around one idea: the coach gets an app that wears TH

@Neymarnad · X

最近一直在做的 Vajra AI 已经上线了。 这是一个 AI-native 的智慧学习平台，希望用 AI 帮助大家更深入地阅读、理解和实践经典智慧。 如果你有空，欢迎体验一下，也很期待听听你的真实反馈。 🔗

@kenshofitness · X

@VidarFit · X

VidarFit - adaptive strength plans (hypertrophy-first) that update as you train. Quiet product, daily shipping.

@aidanwhitsitt · X

A tool that helps ambitious achievers effortlessly track their goals and stay accountable through text messages: