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ProgrammingDEV Community ·

Go's controlsys v1.12.0: Open-Source Solution for Robust Control Systems Modeling and Simulation

The Go ecosystem, despite its growing popularity in systems programming, has long lacked a robust, efficient, and open-source control systems library. This gap has forced developers and engineers to rely on proprietary tools like MATLAB or Python-based solutions, which, while powerful, come with licensing costs and language-specific constraints. The release of controlsys v1.12.0 addresses this critical need by providing a comprehensive toolbox for linear control systems in Go, particularly targeting users transitioning from MATLAB or Python-control. This library bridges the gap by offering a s

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ProgrammingDEV Community ·

Best AI Coding Assistant in 2026 (Tested: Cursor, Claude Code, Copilot…)

TL;DR Claude Code (bundled with Claude Pro, $20/mo; Max $100–200) is the best AI GitHub Copilot ($10/mo Pro) is the cheapest entry Cursor We tested the current leaders — and every one of them now ships an agentic mode, a Cursor — AI-native VS Code fork, multi-model, Composer agent Claude Code — terminal-first agent from Anthropic, bundled with Claude plans GitHub Copilot — the incumbent layer over VS Code, JetBrains, Visual Studio, Xcode Devin Desktop (formerly Windsurf) — editor + CLI + cloud sessions on one quota OpenAI Codex — no standalone product; bundled inside ChatGPT plans Google Antig

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ProgrammingDEV Community ·

My EPUB Passed My Own Checks. The Store's Validator Found 17 Errors.

A field note from the autonomous Claude Code agent I run every day on one Windows PC. The numbers come from its own ledgers, not from memory. My agent builds the ebook file for a Korean ebook distributor. For a month its verify step printed that the file was in a format the store would accept. When the store's upload check ran on a resubmission, it rejected the file with 17 errors.

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ProgrammingDEV Community ·

Moving Beyond LLM Hallucinations in Technical Analysis via Deterministic MCP Tools

Large Language Models are notoriously bad at arithmetic. When you ask a model to interpret complex financial oscillators, it isn't performing calculus; it is predicting the most likely next token based on training data. In technical analysis—where a decimal error in a volatility coefficient can flip a trend signal from bullish to bearish—probabilistic reasoning is a liability. To build reliable AI agents for finance, we have to stop asking models to be calculators and start providing them with the ability to use calculators. This shift moves the intelligence from stochastic estimation to deter

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ProgrammingDEV Community ·

Claude 3‑Moral: Guia prático de alinhamento de LLMs em 2026

Claude 3‑Moral da Anthropic: o que todo desenvolvedor precisa saber para alinhar LLMs em 2026 Introdução O anúncio da Anthropic sobre o modelo Claude 3‑Moral explodiu nas timelines do Reddit, Hacker News e Twitter. Em menos de 48 h, buscas por “ethical AI models” subiram 240 % e a discussão sobre “moralidade na IA” virou pauta obrigatória nos principais veículos de tecnologia. Se a sua empresa ainda não tem um plano de alinhamento, este guia prático mostra, passo a passo, como implementar as técnicas mais eficazes e cumprir a IA Act da UE antes do próximo trimestre. Motivo Impacto imediato IA

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ProgrammingDEV Community ·

Disable stream compression and encryption overhead for high throughput

use_encryption = false Using pure type = tcp mode instead of type = http bypasses FRP’s internal layer-7 HTTP parsing proxy entirely, converting the tunnel into a raw layer-4 TCP stream. This eliminates HTTP header re-parsing delays. Transport & OS Layer: TCP_NODELAY & Nagle’s Algorithm At the OS network socket layer, Nagle’s Algorithm aggregates small outgoing TCP packets into single consolidated frames to minimize network overhead. While useful for file transfers, Nagle's Algorithm causes latency issues for LLM streaming, where individual tokens are emitted as tiny (10–50 byte) TCP payloads.

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ProgrammingDEV Community ·

Building Ethical LLMs: Anthropic's Constitution‑Based RLHF Playbook

Anthropic’s Constitution‑Based RLHF Triggers a Wave of Ethical‑AI Action on Reddit and Beyond Introduction Anthropic’s latest “Constitution‑Based Reinforcement Learning from Human Feedback” announcement has lit up Reddit, Hacker News, and even the front page of The New York Times. Developers are now scrambling for a concrete playbook that translates buzz‑words like “AI alignment” and “ethical LLMs” into code you can ship today. This guide cuts through the hype and delivers a hands‑on, regulation‑aware roadmap for building responsibly aligned large language models in 2026. # Question Practical

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ProgrammingDEV Community ·

Anthropic y la moral en IA: lo esencial para 2026

Anthropic rompe el silencio: la moralidad en la IA que todos deben conocer en 2026 Introducción El anuncio de Anthropic sobre su nuevo modelo alineado ha explotado en Reddit, Hacker News y Twitter, y ha sido cubierto por el New York Times y la BBC. Si todavía dudas de por qué la “moralidad en la IA” es la prioridad número uno para cualquier proyecto de IA en 2026, sigue leyendo: en menos de 200 palabras descubrirás qué cambios regulatorios obligan a tu empresa a actuar hoy y cómo puedes implementar alineación ética con pocos cientos de líneas de código. Característica Modelo tradicional Modelo

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ProgrammingDEV Community ·

A ~40MB binary that speaks Postgres, MySQL, Redis, Kafka and Elasticsearch

Hey all, I've been building noida-db: one Rust binary that implements the real wire protocols of Postgres, MySQL, Redis, Kafka and Elasticsearch. Your existing drivers, ORMs and CLIs connect to it unchanged, and it idles at about 2 MB of RAM. Why: my laptop was running a Docker Compose stack that idled at 2.5–4 GB just so npm run dev would work. For local development I don't need replication, clustering or tuning. I need the commands my app actually sends to behave correctly.

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ProgrammingDEV Community ·

Zipkin at 40 Titles and 562 Fingerprints: When the Signature Finds More Than the Name

Zipkin at 40 Titles and 562 Fingerprints: When the Signature Finds More Than the Name Distributed tracing backends are usually described by what they help you debug. As an exposure subject they are interesting for a different reason: they receive a structured record of every request that flows through an instrumented system, which is a map of the application's internal calls. Collected from ZoomEye AI on 2026-10-02: title="Zipkin" with sub_type="all": 40 matches. app="Zipkin" with sub_type="all": 562 matches. title="Zipkin" && port="9411" with sub_type="all": 0 matches.

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ProgrammingDEV Community ·

Compress Image to 100KB Online — No Upload

Visa portals, exam forms, and job applications all ask for the same thing: a photo under 100KB. Most compressors hand you a quality slider and wish you luck — you export at 60%, check the size, re-export at 50%, check again. Five guesses later you land at 97KB with a photo that looks worse than it needed to. There's a better way: name the size, and let the tool find the best quality that fits it. Type 100, get ≤100KB, done — with your file never leaving your device.

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ProgrammingDEV Community ·

Celular apagado sigue conectado y cómo forzar un apagado real

Un celular apagado sigue conectado y forzar un apagado real se convirtió en la única defensa frente al rastreo pasivo de hardware. Presionas el botón lateral, deslizas el control en pantalla. Después, el panel de píxeles se funde en negro y crees que la comunicación ha cesado por completo. Es una ilusión óptica. El microprocesador principal entra en suspensión, pero los controladores secundarios continúan emitiendo balizas de radiofrecuencia a espaldas del usuario.

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ProgrammingDEV Community ·

DTU Breach: IAM Data Theft May Affect Up to 200,000 People

1. Basic Information Original Title: Cyberattack on DTU: Notification of a personal data breach Source: Technical University of Denmark Published: 2026-10-02 Updated: None Report Revision Rationale: Technical review: Clarified the scope of impacted individuals and confirmed data theft, stored data fields for current and former users, unconfirmed scope of password compromise, investigation candidates, and prevention conditions. Severity: High Severity Rationale: Unauthorized access from a compromised profile to the IAM system and massive download activity have been confirmed. Up to 200,000 indi

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ProgrammingDEV Community ·

Finding Affected Check Point VPN Deployments: Version Scope and ZoomEye Exposure for CVE-2026-85102

Finding Affected Check Point VPN Deployments: Version Scope and ZoomEye Exposure for CVE-2026-85102 Vulnerability overview CERT-In Vulnerability Note CIVN-2026-0459, dated September 16, 2026, rates multiple Check Point VPN vulnerabilities as CRITICAL. The note names CVE-2026-85102 and CVE-2026-85103 and lists Security Gateway, Security Management Server, and Spark Firewall as affected products. CERT-In attributes the flaws to improper certificate validation and a heap-based buffer overflow during VPN certificate processing. An unauthenticated remote attacker exploits them by supplying speciall

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ProgrammingDEV Community ·

How Much Do Software Engineers Really Earn in Japan? (Official Data + What Offers Don't Tell You)

Search for "software engineer salary Japan" and you'll find numbers anywhere from ¥4M to ¥15M. They're not all wrong — they're measuring different people: government statistics cover every developer in the country, while surveys of international developers cover a narrower, more senior group. This article puts the two most useful data sources side by side, explains why they differ so much, and then covers the part most salary guides skip: how to read a Japanese offer, where bonuses, fixed overtime pay and deductions can change the real number a lot. The Ministry of Health, Labour and Welfare p

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