NETO: A Local P2P Chat Tool for Dev Teams That Keeps Data Off the Cloud

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NETO is a peer-to-peer chat application built for development teams who want to communicate entirely within their local network. The tool requires no servers, no user accounts, and no external data storage, ensuring sensitive information never leaves the office. It uses mDNS technology to automatically discover other users on the same network without any manual IP configuration. Messages are secured through end-to-end encryption powered by the X25519 elliptic-curve Diffie-Hellman key exchange protocol. NETO positions itself as a privacy-focused alternative to cloud-based platforms like Slack, where credentials and architectural discussions may be stored on third-party servers.

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How to Parse Pinterest URLs Safely in JavaScript Without Network Requests

Pinterest URLs pose security and reliability challenges when accepted from users, as they can arrive from country-specific domains, carry tracking parameters, or use shortened pin.it links. A naive hostname check like hostname.includes('pinterest') risks accepting lookalike or malicious domains, while fetching every URL to classify it introduces latency and server-side request forgery vulnerabilities. A safer approach uses JavaScript's built-in URL parser combined with an explicit allowlist of known Pinterest hostnames to validate scheme, host, and port before any path analysis. Once the host is trusted, pathname pattern matching can classify a URL as a pin, profile, board, ideas page, or short link, and strip tracking parameters to produce a canonical URL. This network-free method returns structured metadata — including pin IDs, usernames, and board slugs — giving applications the detail they need without making any external requests.

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ProgrammingDEV Community ·

Repaint vs Reflow: How Browser Rendering Affects Website Performance

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ProgrammingDEV Community ·

Why AI Agents Fail at 97.5% of Real Tasks: The Missing Context Problem

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ProgrammingDEV Community ·

AI Engineer Who Builds LLMs Writes Book on Slowing Down in a Speed-Obsessed Tech Culture

A machine learning engineer who works daily on large language models noticed a troubling pattern: after 14-hour workdays, his brain was too exhausted to function yet still reflexively reaching for stimulation. Drawing on neuroscience, he observed that the tech industry's obsession with speed and efficiency has eroded the kind of deep, meaningful time the ancient Greeks called Kairos. Research into the brain's Default Mode Network showed him that rest is not wasted time but essential for creativity, memory, and emotional regulation. He developed a set of practical protocols — including monotasking blocks and intentional cognitive cooldowns — to protect attention amid constant demands for speed. These notes eventually became a short book, "The Art of Slowing Down in the Age of Hyper-Speed," aimed at tech professionals feeling the strain of an industry that prioritizes throughput over human limits.

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