Hacker News

Free Models Router – OpenRouter

Hacker News - Mon, 02/16/2026 - 5:52pm
Categories: Hacker News

Show HN: Babylog – baby tracker built with OpenClaw from a hospital room

Hacker News - Mon, 02/16/2026 - 5:50pm

Hey HN! I built Babylog (https://babylog.chand1012.dev) — a simple baby tracker for logging feedings, diapers, and naps — entirely from my wife's hospital room using an AI coding agent.

My wife's water broke the day before her due date. After 18 hours of labor and an emergency c-section at 3am, our son was born. When a nurse asked "do you know what time he ate last?" and we had no idea, I knew I needed something to track it. But I didn't bring my laptop.

I had OpenClaw set up on a home server, accessible via Telegram. So I built the whole thing from my phone — planning the architecture, writing code, deploying to Cloudflare Workers — all through chat.

Stack:

• React + Vite + React Router frontend (PWA) • Hono backend on Cloudflare Workers • Cloudflare D1 (SQLite) for storage • Retro UI component library • CI/CD via GitHub Actions The MVP deployed and worked first try — account creation, child profiles, diaper and feeding logging all functional immediately. My wife and I have been using it daily since.

What went well: Zero-to-working-app without touching a keyboard. The agent handled monorepo setup, API design, frontend, deployment, and even CI/CD pipeline creation.

What didn't: No migration system (the agent skipped proper DB migrations), context poisoning made initial Cloudflare deployment painful (~1 hour of fighting the wrong API endpoint), and I broke every security best practice by giving the agent my API keys directly.

Lessons learned: Scaffold your template and CI/CD first, then let the agent iterate on features. Blog post with the full story: https://dev.to/chand1012/i-built-a-baby-tracker-app-from-my-...

Comments URL: https://news.ycombinator.com/item?id=47041425

Points: 1

# Comments: 0

Categories: Hacker News

Doc Edgerton a.k.a. "Papa Flash"

Hacker News - Mon, 02/16/2026 - 5:49pm
Categories: Hacker News

Show HN: Design Inspiration for LLMs

Hacker News - Mon, 02/16/2026 - 5:46pm

I feel the rapid progress of LLM capability means that building software is shifting away from implementation and toward discernment. The challenge is becoming less about how software is built, but about what is built and how it is presented.

It becomes a question of taste. LLMs create exceptionally generic and inconsistent designs in the absence of curated references.

FontofWeb grounds AI in real production websites. It draws from a crowd-sourced search engine of over 1,000 live sites, extracting proven color and typography combinations, along with layout and styling patterns that already work in context.

This is available through a free public MCP service.

Comments URL: https://news.ycombinator.com/item?id=47041394

Points: 1

# Comments: 0

Categories: Hacker News

Fault Injection

Hacker News - Mon, 02/16/2026 - 5:44pm
Categories: Hacker News

Resist and Unsubscribe (Scott Galloway)

Hacker News - Mon, 02/16/2026 - 5:41pm

Article URL: https://www.resistandunsubscribe.com

Comments URL: https://news.ycombinator.com/item?id=47041339

Points: 1

# Comments: 1

Categories: Hacker News

Ask HN: Why is Codeforces so slow?

Hacker News - Mon, 02/16/2026 - 5:39pm

I enjoy using Codeforces for competitive programming — the problems and community are great.

However, the site is often very slow:

- During contests, the site can become extremely slow or even crash.

- The rating page (filtering by country, organization, etc.) can be laggy and prone to crashing.

I’m curious whether this is mainly a scaling issue, an infrastructure limitation, or something specific to how Codeforces handles contests and ratings.

It’s understandable that contests can crash under high user load, but Codeforces has been around for over 16 years — why hasn’t this been improved?

Thanks!

Comments URL: https://news.ycombinator.com/item?id=47041324

Points: 2

# Comments: 0

Categories: Hacker News

Show HN: Binary is no longer safe

Hacker News - Mon, 02/16/2026 - 3:53pm

This post is about the brute-force reverse engineering of binary (compiled) programs using Large Language Models (LLMs) to automate this two-part problem: decompilation and conversion to a modern programming language.

The most interesting part for most will likely be the demonstration on how to use differential-property testing to automate the LLM feedback loop for the rewrite (translation) phase (in this case to rewrite to Rust).

This that I believe would solve the 'rewrite issues' discussed recently here: https://news.ycombinator.com/item?id=46954696

Comments URL: https://news.ycombinator.com/item?id=47040190

Points: 1

# Comments: 0

Categories: Hacker News

Show HN: Provisioner per-board sidecar for serial access, flashing, and bring-up

Hacker News - Mon, 02/16/2026 - 3:52pm

Hi HN,

I’ve been building a small infrastructure tool called Provisioner: a per-board provisioning sidecar for SBC bring-up and lab automation. https://github.com/alessandrocarminati/provisioner

The model is simple: one instance per board. It sits next to the hardware, owns the serial console, exposes access over SSH, and serves boot artifacts (kernel, initramfs, rootfs) via TFTP/HTTP. It’s designed for the phase where networking is unreliable, storage is half-flashed, and UART is the only thing still telling the truth.

What it does

- Serial console ownership + SSH multiplexing - Monitor shell + serial tunnels - Scriptable boot interaction - Artifact provisioning (TFTP + HTTP) - In-band file transfer over serial - gzip/base64 hacks + XMODEM - Derived from my earlier send_console-ng utility https://github.com/alessandrocarminati/send_file-ng - Pluggable power control - SNMP PDUs, among others cheap ESP8266/Tasmota devices - Serial logging - Lightweight access control

Provisioner also embeds a minimal init runtime (goinit) inside the kernel initramfs, acting as its on-board provisioning agent, handling flashing, artifact retrieval, and reporting management state back over serial.

Routing & stream handling

Internally, Provisioner routes serial traffic through a pluggable router:

- Producers/consumers attach as components - Human vs machine clients handled differently - Unicast control sessions - Broadcast multiplexing to multiple observers

This allows several users or services to watch the same console without interfering.

Filters

A filter subsystem can intercept and modify serial streams on the fly.

Originally added to mitigate ANSI Device Status Reports (e.g. Cursor Position Report issues) when tunneling serial consoles, but it doubles as a general stream rewriting mechanism for automation and normalization.

Positioning

Not trying to replace large systems like LAVA.

This is aimed at:

- Homelabs - Bring-up benches - Kernel/BSP work - Small shared labs

Think lab automation you can deploy in an afternoon, not fleet orchestration.

Project is still evolving but already in daily use. Feedback and abuse welcome.

Comments URL: https://news.ycombinator.com/item?id=47040176

Points: 1

# Comments: 0

Categories: Hacker News

Virtual Width Networks (VWN)

Hacker News - Mon, 02/16/2026 - 3:50pm

Article URL: https://arxiv.org/abs/2511.11238

Comments URL: https://news.ycombinator.com/item?id=47040153

Points: 1

# Comments: 1

Categories: Hacker News

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