HackerNews

Show HN: A practical AI Evaluation pattern

Article URL: https://deepsense.ai/blog/the-top-scoring-model-is-not-always-the-best-production-choice-how-to-evaluate-ai-systems-beyond-public-benchmarks/ Comments URL: https://news.ycombinator.com/item?id=49931859 Points: 1 # Comments: 1
HackerNews

Financing the AI Buildout

Article URL: https://www.brookings.edu/articles/financing-the-ai-buildout/ Comments URL: https://news.ycombinator.com/item?id=49932274 Points: 2 # Comments: 1
HackerNews

Sozly AI

Article URL: https://sozly.ai/az/ Comments URL: https://news.ycombinator.com/item?id=49932461 Points: 1 # Comments: 0
🌍 Dev.to

I Built an AI Learning Companion for People Who Want to Learn by Building

For the Hacktoberfest Weekend Challenge: Build for a Friend , I wanted to build something that wasn't just another AI demo. I wanted to build something that could actually help someone learn. So I built AIBuddies . 👉 Live: https://ajay-dhangar.github.io/ai-buddies/ 👉 Source: https://github.com/ajay-dhangar/ai-buddies AIBuddies is an open-source AI learning companion that brings together learning paths, practical projects, interactive demos, and community-driven resourc...
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I let an AI agent run my side project's growth loop: intent.md, CI gates and metric bands

I'm a digital tutor at a middle school in Korea. A while ago I got tired of emailing myself files just to move a photo from my phone to a classroom PC, so I built a small web app with Claude Code: Clipboard Share . Open it on two devices on the same Wi-Fi and they find each other. No code to type, no sign-up, no app install. Building it was the fun part. Getting anyone to use it was not. Usage had been sliding for three weeks, and every "growth" task (checking Search Console, tweaking a titl...
🌍 Dev.to

A bulk export still needs per-row authorization

Export and “download all” endpoints are where object-level checks quietly disappear. The UI shows a filtered table, but the export handler often runs a privileged query, streams every matching id, and trusts that the list page already did the hard part. If any row in that stream would 404 or 403 on the single-resource path, the export just became a bulk BOLA. Patterns that hold up: Authorize the action (can this subject export this collection?) and then constrain the query with the ...
OpenAI hack by Claude, ZCode's git upload: week 38 in tech, ranked
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OpenAI hack by Claude, ZCode's git upload: week 38 in tech, ranked

Week 38 of 2026 had the OpenAI hack, a Claude-written exploit that got three researchers into OpenAI's internal GitHub, a coding agent that uploaded users' git history, and a Microsoft memo calling AI training "the largest theft of labor in human history". Here are September 14 to 18, seven stories ranked by how much each changes your Monday as a developer, with what happened after each episode and the stamp it gets now. TL;DR: week 38, ranked # Story Stamp n...
🌍 Dev.to

Weekly Dev Log 2026-W20

🗓️ This Week It’s been two weeks since my last update . I had a long break of about five days, and here in Japan, it’s really starting to feel like autumn🍂. This time of year is perfect for picnics, so it’s been nice to enjoy the cooler weather. I also planted some lavender seeds with my kids that we received at a local event, and they’ve just started to sprout recently🌱. It’s been fun checking on them together and watching them grow little by little. This week, I finally started...
I don't watch F1, so I built a quiz where the AI isn't allowed to grade me
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I don't watch F1, so I built a quiz where the AI isn't allowed to grade me

This is a submission for the Sanity Challenge, Path One: Ship an Agent That Queries Real Content What I Built I'm not an F1 person, but I've wanted to get into it for a while. Pole, DNF, sprint, undercut: I knew the words existed and not much more. So for this challenge I built the thing I actually needed, a quiz that teaches you Formula 1 one race at a time. It's called Pit Wall. You pick a 2026 Grand Prix and a tyre (Soft for one fact from the race, Medium for comparing d...
🌍 Dev.to

Building a Browser-Based T-Shirt Designer with HTML5 Canvas

I've been exploring ways to build a browser-based T-shirt design editor using JavaScript and HTML5 Canvas. The goal is to let users create their own T-shirt designs by adding text, uploading images, resizing elements, and positioning them on a canvas. I'm also interested in implementing features such as zooming, panning, and measurement rulers to make the design experience more precise. You can see an example of the T-shirt design editor I'm working on here . One of the interesting ...
🌍 Dev.to

Show Dev: Agricalc — free science-based agriculture calculators as an offline-first PWA

Hey devs! I want to share a project I built: Agricalc ( https://agricalc.online ), a free collection of science-based agriculture calculators. What it does: Covers the full farming cycle — planting, fertilization, irrigation, harvest, and marketing Every calculator is built on established agricultural formulas and reference data Includes a 53-term agricultural glossary (CEC, GDD, evapotranspiration, N-P-K…) Why a PWA: Farms often have poor connectivity — the whole thing wor...
Build for a Friend: Receipt Lens
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Build for a Friend: Receipt Lens

Build for a Friend: Receipt Lens Entered in the Best Use of Sentry Agent Tracing category: tooling that shows an agent's work, with traces. The problem A friend of mine runs AI agents to do real work: research, data pulls, summaries. The agents are useful. The problem is what happens after. The agent says "done," hands over an answer, and everything in between is a black box. He asked me the simplest question in the world: what did the agent actually do? I ...
🌍 Dev.to

Does Dependency Security Really Need the Cloud?

The question I kept asking myself a simple question: Why does checking a dependency for a known vulnerability need to send anything to the cloud? This isn't an argument against cloud-based security tooling . There are good reasons to use centralized services, especially when you need continuously updated data, organization-wide policies, reporting, or large-scale analysis. I was interested in a narrower engineering problem: What would a dependency vulnerability analyzer look like if...
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Why is PageSpeed Insights worse than my local Lighthouse score?

You run Lighthouse in Chrome DevTools on a client URL and see Performance 94. You paste the same URL into PageSpeed Insights and the lab Performance score drops to the sixties. The audits look related. The numbers do not. Neither result is “lying.” They ran the same Lighthouse family of audits on different machines, with different throttling behaviour, and often with different cache and extension state. That gap shows up constantly in agency Slack threads and client calls. People then optimis...