DEV Community • 2026-07-27 18:36

BUILDING GREENWOOD ACADEMY DATABASE USING POSTGRESQL

INTODUCTION Creating Greenwood academy database is essential for managing the students, subject and exam results efficiently. PostgreSQL, a powerful open-source relational database system, offers the perfect foundation for such a project. The main areas areas in SQL covered in this projects are : 1. DDL (Data Definition Language) DDL commands define, modify, and change the physical structure of...

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Hacker News • 2026-07-27 18:36

Show HN: Yap – OSS on-device voice dictation for macOS with no model to download

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DEV Community • 2026-07-27 18:34

I built a local LLM that runs entirely in your browser. No install, no GPU, no server

A few months ago I got obsessed with a question: can you run a real LLM entirely inside a browser tab, with zero backend, zero GPU, and zero install? The answer is yes. Here's what I built. ghost is a single HTML file that downloads a quantized language model into your browser's cache on first visit, then runs inference locally in WebAssembly forever after. Fully offline after that first downloa...

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/r/ReactJS - The Front Page of React • 2026-07-27 18:33

I got tired of setting up Express 5 + React 19 boilerplate, so I built D-Stack — a full-stack monolith CLI

submitted by /u/UnitFlaky136 [link] [comments]

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Hacker News: Front Page • 2026-07-27 18:32

The Artist Who Colored Ghibli

Article URL: https://animationobsessive.substack.com/p/the-artist-who-colored-ghibli Comments URL: https://news.ycombinator.com/item?id=49073785 Points: 5 # Comments: 0

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Hacker News: Front Page • 2026-07-27 18:26

Exercise works for depression. So why isn't it treated like real medicine?

Article URL: https://bigthink.com/mind-behavior/exercise-works-for-depression-so-why-isnt-it-treated-like-real-medicine/ Comments URL: https://news.ycombinator.com/item?id=49073691 Points: 13 # Comments: 0

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DEV Community • 2026-07-27 18:26

MCPRadar: A Security Scanner Built for the MCP Ecosystem published: true tags: mcp, security, ai, opensource

Model Context Protocol servers have quickly become the connective tissue between AI agents and the outside world — file systems, databases, APIs, internal tools, you name it. That convenience comes with a catch: the tools, prompts, and schemas an MCP server exposes are a new kind of attack surface, and most traditional scanners simply don't look there. MCPRadar is an open-source project built spec...

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Hacker News: Front Page • 2026-07-27 18:25

Bytecode-to-Source Mapping

Article URL: https://tidefield.dev/bytecode-to-source-mapping/ Comments URL: https://news.ycombinator.com/item?id=49073665 Points: 3 # Comments: 0

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DEV Community • 2026-07-27 18:23

I was maxing my Claude 5-hour limit daily and still wasting weekly quota every night, so I built a tool that spends it while I sleep

Like a lot of you I hit the 5-hour cap most days. What actually annoyed me was realizing the weekly limit doesn't line up with that. Even capping out daily, I ended every week with quota unused. It expires overnight even after I paid for it. So I built claude-overnight. I queue questions during the day, /queue how do sqlite WAL checkpoints work? right inside Claude Code, and a scheduler runs them...

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Hacker News: Front Page • 2026-07-27 18:21

Why Lattice Semiconductor buying a x86_64 BIOS company shows engineer disrespect

Lattice Semiconductor Corporation once banned the reverse engineering of their FPGA tools and also possibly their FPGA chips, saying:"In particular, no right is granted hereunder […] (3) for reverse engineering a bitstream format or other signaling protocol of any Lattice Semiconductor Corporation programmable logic device." and"You may use any software provided on this website provided that you a...

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DEV Community • 2026-07-27 18:18

Summer Log #3: A Message, Memories and Building a MikroTik Monitor

Every log has a story خب، روز سوم الان که دارم این لاگ رو می‌نویسم، روز تقریبا تموم شده و امروز از اون روزهایی بود که حس خوبی داشت اگر بخوام بهش نگاه کنم، می‌تونم بگم یکی از روزهای خوب ۱۴۰۵ بود البته امیدوارم بهترینش نباشه چون هنوز کلی برنامه داریم، کلی چیز هست که باید ساخته بشه و کلی روز بهتر قراره بیاد یک پیام غیرمنتظره دیروز ساعت 17:54 یک پیام دریافت کردم راستش آن لحظه خی...

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Newest questions tagged javascript - Stack Overflow • 2026-07-27 18:15

Formatting Date for jsPDF

My boss wants me to work on an old jsPDF that a former employee created. It's coded as an html/javascript form people can fill out that exports to a PDF, but I can't figure out how to change the format of a date that's exported to the PDF. Here's the code for the portion of the form they're filling out with a date: const postageBody = document.getElementById('postageBody'); function renderPostage(...

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Hacker News: Front Page • 2026-07-27 18:15

Judge Rejects Google's Attempt to DMCA Its Way Out of Being Scraped

Article URL: https://www.techdirt.com/2026/07/27/judge-rejects-googles-attempt-to-dmca-its-way-out-of-being-scraped/ Comments URL: https://news.ycombinator.com/item?id=49073513 Points: 13 # Comments: 1

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DEV Community • 2026-07-27 18:15

The Blinking Toilet Light and My `isProcessing` Flag Were Doing the Same Job

Introduction Hello from Japan! 🇯🇵 I am a professional truck driver teaching myself Python and web development while working toward a career transition into web engineering. This article records what I learned after approximately 122 hours of programming study, starting on May 12, 2026. Recently, I added a ripple animation effect to the answer buttons in my self-developed application:...

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DEV Community • 2026-07-27 18:15

AI Bills Don't Send Warnings: Budget Control in Laravel with laravel-ai-tasks

Your first AI call has no cost guardrail. It doesn't need one — it's one request, you're testing, it's fine. Then it ships. Retries stack up, a queue worker chews through a backlog overnight, one tenant sends ten times the traffic of everyone else combined, and nobody notices until the provider's invoice arrives at the end of the month. There was no point in the request lifecycle where anything c...

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DEV Community • 2026-07-27 18:13

I Built a Token-Routing Decision Tree for My OpenClaw Agent. It Cut My Bill and Stopped Three Cron Failures

I burned $87 on a single weekend in March. Not because my OpenClaw agent did anything wrong — because every single tool call hit my paid primary model, including the ones that were checking the weather for a cron job that didn't need it. Then OmniRoute crossed my feed this week showing 1B tokens routed for $0, and I realized I had been doing routing wrong for months. Not the mechanics — those wer...

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NVIDIA Forms 37-Member Open Secure AI Alliance and Open-Sources NOOA Framework
The Hacker News • 2026-07-27 18:10

NVIDIA Forms 37-Member Open Secure AI Alliance and Open-Sources NOOA Framework

NVIDIA and 36 other organizations have formed the Open Secure AI Alliance to develop and share open technologies, techniques, and tools for securing software and artificial intelligence (AI) agents. The 37-member group spans cloud, security, enterprise software, and AI companies, including Microsoft, Cisco, Cloudflare, CrowdStrike, Hugging Face, IBM, Palo Alto Networks, Red Hat, and the Linux

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From AI logger to AI governance layer, what 5,600 downloads taught us about Chron
DEV Community • 2026-07-27 18:06

From AI logger to AI governance layer, what 5,600 downloads taught us about Chron

When we shipped Chron six months ago, the pitch was simple: every AI conversation should leave a timestamped, tamper-evident record. Developers installing AI coding tools had no answer to the question "what did the AI actually do?" Chron was that answer. 5,600 installs later, the question has changed. It's no longer "did we log it?" — most teams using Chron have solved that. The new question is:...

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DEV Community • 2026-07-27 18:06

MCP in Production: Tool Design, Catalogs, and the Gateway Problem

Adding tools to an agent is easy. Adding too many is how you break it. Connect a database, wrap an API, publish a server: exposure is a few lines of config. Past a certain count, the agent slows down and starts picking the wrong tool. Anthropic has documented the mechanism: tool definitions alone can consume tens of thousands of tokens before the agent begins working. Three problems emerge at sc...

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Hacker News • 2026-07-27 18:04

Show HN: Choreo – an animation DSL that verifies its own rendered output

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