COCOM Limits on GPS Receivers Pose Challenges for Balloons and CubeSats

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A discussion on Space Stack Exchange examines how COCOM regulations affect the use of GPS receivers in high-altitude balloons and CubeSats. COCOM-era export control rules restrict GPS devices from operating above certain speed and altitude thresholds, originally designed to prevent use in ballistic missiles. This creates practical hurdles for amateur and research aerospace projects that operate near or beyond those limits. The thread explores the current regulatory landscape and what options are available to developers working on such low-cost space and near-space platforms.

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DNSGlobe: Open-Source Rust Tool Tracks DNS Propagation Globally in Terminal

DNSGlobe is a newly released open-source tool built using the Rust programming language. It provides a terminal user interface (TUI) that allows users to monitor DNS propagation across different regions of the world in real time. The project is hosted on GitHub under the organization 514-labs. It is designed for developers and network administrators who need visibility into how DNS changes spread globally. The tool was shared on Hacker News, where it garnered initial community attention.

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ProgrammingDEV Community ·

Developer Builds Offline AI Second Brain on Raspberry Pi 5 to Reclaim Data Privacy

A developer has built a fully offline Retrieval Augmented Generation (RAG) system running on a Raspberry Pi 5, equipped with NVMe storage and a Hailo-8 AI accelerator, to serve as a private personal knowledge base. The project was motivated by concerns that cloud-hosted AI tools expose users' queries, notes, and retrieval histories to third-party platforms that are subject to legal subpoenas and data retention policies. Unlike fine-tuning, RAG stores knowledge outside the model and retrieves it at query time, allowing easy updates, source citation, and filtering by metadata such as date or document type. The entire system operates without API keys or external telemetry, ensuring that no third party can access or be compelled to hand over the user's stored information. The developer argues that local RAG restores genuine cognitive agency by keeping the model, index, and retrieval path entirely within the user's own network.

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ProgrammingHacker News ·

Developer launches Homegames, an open-source browser-based game platform 8 years in making

A solo developer has publicly shared Homegames, an open-source platform for simple browser-playable games that has been in development since 2018. All games on the platform are built as JavaScript classes, allowing anyone to read the full source code of every title. The project began with basic rendering tests before the developer gradually built out the broader platform infrastructure to simplify game sharing. Homegames also includes an in-browser editor that lets users create and publish their own games without leaving the browser. The full codebase is publicly available on GitHub, and the developer is actively seeking community feedback on both the games and platform features.

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ProgrammingDEV Community ·

AGENTS.md Gives AI Coding Agents the Repo Rules That README Files Miss

README files are written for human developers and typically explain what a project is and how to run it, but they lack the operational instructions that AI coding agents need to work reliably. Without a dedicated guidance file, agents must guess details like which package manager to use, which files are off-limits, and what constitutes a completed task. AGENTS.md is a purpose-built file that provides coding agents with setup commands, test and lint instructions, file boundaries, and completion criteria before they begin work. Tools like Goose, an open-source local AI agent, can read AGENTS.md directly from a repository, reducing the need to repeat standing rules in every prompt. Developers are advised to keep AGENTS.md focused on universal repo rules and offload repeatable task routines to separate skills or extensions to prevent the file from becoming cluttered.

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