Show HN: PaperMono, e-ink fridge magnet shopping list with mobile web page
Fridge magnet shopping list on an M5Stack PaperMono (ESP32-S3, e-ink touchscreen), synced with a phone web app over Wi-Fi. Works offline, ~2,400 lines of C++.<p>This is a great wee device! BLE, Wi-Fi and LoRa on one board makes it flexible for way more than a shopping list, this is just what I built first. This firmware only uses Wi-Fi.<p>Fully vibe-coded with Claude Code, I didn't hand-write this. I wanted to see how Claude would get on with building something useful for a new hardware device.<p>As it's stuck to the fridge it's easy for the family to use, and it's already being used day to day which I'll admit is a first for a home built project like this
竞品与替代品
Show HN: Air-gapped file encryption as self-decrypting HTML page
Air-gapped file encryption packed into a single, self-decrypting HTML page. Repo: <a href="https://github.com/ApelegHQ/…
Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards
Hi HN,<p>I kept wiring Ben Eater's 8-bit computer wrong, so I built a realistic virtual breadboard editor.<p>Some of th…
Show HN: Cross-device passkey auth on Android 9, synced with Bitwarden
I saw a colleague log in to a website on my laptop by scanning a FIDO QR code. I wanted to do the same, but couldn't fi…
Show HN: AI-built browser games, collected in one place
Hello, HN friends.<p>I spent many happy IT lessons messing around on Newgrounds when I was a kid. And, to further age m…
Show HN: Confetti – Start designing hardware with plain English prompts
Hey HN! We're Tianyi and Lucas from Confetti (YC F26) (<a href="https://confetti.build/">https://confetti.build/</a>).…
跨平台收录记录
Show HN: RemoteKu – Desktop Roku remote and live ECP keyboard deck for Mac/PC
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Show HN: Light control for MacBook charger status light (open-source)
For anyone who wants to control their MacBook charger light. For me, my MacBook lives in…
Show HN: Memro – Persistent Memory for Claude Code, Cursor and Codex
Memro is go bases persistent memory system that lets ai agents share context acssion sess…
Show HN: String#to_proc` to Help Traversing JSON
I've resuscitated a project I was working on years ago.<p>I was tired of having nested `f…
dsh-media-desk
这是一个开源项目，装在 DeepSeek Harness 侧栏里的一个页面。打开是一面灵感墙，一句话记一个灵感；点开任何一条，一键生成口播脚本、标题、视频封面、配图和黑白线稿分镜…
Show HN: Cal.flare – cal.diy ported to Cloudflare Workers
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Show HN: Dodaiso – Open-source personal AI agent (like Jarvis, dots,duet)
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Show HN: The Price of Patience
How waiting a little has saved us over 50% on inference requests over the last few months…
Show HN: Log every LLM call with tokens, cost, latency, and time to first token
Hi HN,<p>Llmtee is a lightweight llm proxy. I built this project because I needed a simpl…
Show HN: Harness Tuner – eval-driven tuning loop for agent tools, prompts, model
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Show HN: Reflota – Open-source data recovery for NTFS/FAT disks with phased copy
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Show HN: Woolly – Take your ChatGPT memory with you, local and open source
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Show HN: PharmA2A, an open protocol for pharmacy-to-supplier orders on A2A
I'm a pharmacist in France and a nerd. I built an open source protocol based on A2A, Call…
Show HN: Talgent Workbench – Open-source managed agent platform you run yourself
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Show HN: As IrfanView isn't on Linux, I've vibe-coded my own image viewer
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Show HN: AgentLeak – open-source privacy testing for multi-agent LLM systems
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Show HN: KittyBrowser, I built a web browser in your terminal
I'm spending more time in the terminal, and with kitty graphics support now in Ghostty an…
Show HN: Cerulion – ROS 2-compatible robotics runtime with multi-process replay
Hey HN! I'm Lakshay. Raveen and I have built Cerulion, a ROS2-compatible robotics runtime…
Show HN: DRS-VPT. Localize a photo in a 3D point cloud without an initial pose
Hi HN, I work on multi-modal sensing for robotics.<p>We built DRS-VPT to estimate a camer…
Show HN: Kiln – A WebGPU alternative to transformers.js, 2.2× faster (median)
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