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ProgrammingDEV Community ·

Web app calculates latitude using a stick, shadow, and solar position.

A web application called Noon Stick calculates a user's latitude using a simple physical experiment. Users place a straight stick in flat ground around solar noon and measure its shadow length. The app uses the shortest shadow measurement and the date to compute the latitude, typically within one degree of accuracy. It was created for the Hacktoberfest Open-Source AI Challenge and runs entirely in a browser.

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ProgrammingHacker News ·

Cryptographer Warns of Potential Threat to Public Key Cryptography

Cryptographer Matthew D. Green has expressed concern that current public key cryptography systems could be compromised. He raised this warning in a recent discussion on social media platform X. Green's comments subsequently sparked a broader conversation on Hacker News. The discussion centers on potential vulnerabilities that could undermine widely used encryption methods.

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ProgrammingDEV Community ·

Go developers advised to treat SMS OTP delivery as asynchronous workflow

A DEV Community article advises developers to treat SMS one-time passwords as asynchronous workflows, not as instantly successful operations. The piece outlines common reasons for delivery failure, including carrier filtering and unregistered sender IDs. It recommends implementing systems that track delivery status separately from API acceptance. The article stresses this is crucial for legal verification processes where proof of delivery to the correct person is required.

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ProgrammingHacker News ·

Research suggests ADHD may be linked to circadian rhythm disruptions

A new scientific paper proposes that ADHD may be fundamentally linked to circadian rhythm disorders. The article, published in Frontiers in Psychiatry, reviews existing evidence supporting this connection. It explores the implications of this theory for treating ADHD with chronotherapy, which involves timing medical interventions to a patient's biological clock. The research was discussed on the Hacker News forum, where it garnered attention from the community.

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ProgrammingDEV Community ·

Drone aerial surveys reveal critical security blind spots in perimeter assessments

Traditional ground-level perimeter security assessments often miss vulnerabilities that are only visible from above. Using drones, certified pilots can efficiently inspect camera sightlines, mounting hardware, and fence continuity from an aerial perspective. These flights provide documented, timestamped evidence of issues like corrosion, blind spots, and physical breaches that are invisible from the ground. For industrial sites, such drone operations require proper certification and regulatory compliance. Incorporating an aerial pass into security audits reveals critical findings that ground surveys alone cannot detect.

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ProgrammingDEV Community ·

OpenAI's annualized revenue projection is $20 billion lower than previously indicated.

OpenAI has reportedly revised its annualized revenue projections downward by $20 billion. This adjustment reduces the figure from a previously signaled, higher expectation. The company, known for developing ChatGPT, is a major player in the artificial intelligence sector. The change highlights the volatility and challenges in forecasting within the high-growth tech industry.

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ProgrammingDEV Community ·

Open-source AI virtual try-on tool aims to reduce fashion returns and screen time

A developer has built a virtual try-on web application for the Hacktoberfest Open-Source AI Challenge. The app allows users to upload their own photo and a garment image to see a simulated outfit result. It leverages Google's open-weight Gemma AI model to analyze garments and suggest fit. The tool is designed for college students and online shoppers seeking to minimize returns and reduce time spent shopping online. A live demo and source code for the project have been made publicly available.

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ProgrammingDEV Community ·

Jev vs Gemini Flash-Lite evaluation shows trade-offs between cost and accuracy

The author compared the Jev decision model and Google's Gemini Flash-Lite LLM for a classification task in October 2026. They tested both models thousands of times on a production task to route system checks. Jev is designed to output calibrated probabilities over options at a very low cost. Gemini Flash-Lite is a low-cost model optimized for high-volume tasks like classification. The test aimed to determine the most cost-effective and reliable setup for their routing system.

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ProgrammingDEV Community ·

Developer creates NexusLang, a programming language with Urdu, Turkish, and Spanish keywords

A developer in Argentina has built a new open-source programming language called NexusLang. It allows programmers to write code using keywords in Urdu, Turkish, or Spanish, which are then compiled to standard English syntax internally. The project was developed solo on an Android phone with no budget and includes a partnership with a co-founder in Pakistan. The language is designed to lower the English-language barrier to programming education, with pilot programs planned for Pakistani technical schools.

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ProgrammingDEV Community ·

Cryptomining botnet PoeLLM targets AI infrastructure servers, researchers warn

A cryptomining botnet called PoeLLM is targeting servers running popular AI and development services, according to Lumen's Black Lotus Labs. The malware uses a poem on GitHub to coordinate its command-and-control infrastructure by translating words into IP addresses. Researchers identified compromised deployments running LiteLLM, Ollama, Gotenberg, and Gitea, with activity traced back to April 2026. The botnet uses infected hosts to mine cryptocurrency and scan for additional victims. Security researchers advise administrators of these services to verify their network configurations and update vulnerable software.

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ProgrammingDEV Community ·

Developer opts for WordPress over custom site for convenience and content ownership

A developer has chosen WordPress for their new blog despite having the skills to build a site from scratch. They cited a desire to avoid time spent on site management and maintenance. The decision was also influenced by a need for greater control over content ownership and recoverability. The platform's mobile accessibility for writing on the go was a key factor. The developer plans to cross-post content to other platforms while maintaining their primary site on WordPress.

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ProgrammingDEV Community ·

Open-source web app uses local AI for offline outdoor observation prompts

A developer has created a web application called Field Notes for the Hacktoberfest Open-Source AI Challenge. The minimal doodle-themed app provides outdoor observation prompts to encourage users to take breaks from screens. It can generate fresh prompts using the Gemma3:1b open-weight AI model running locally via Ollama. If the local AI runtime is unavailable, the app defaults to a predetermined offline prompt deck. The project emphasizes privacy, offline functionality, and avoiding cloud dependencies.

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ProgrammingDEV Community ·

Microservices and Microfrontends Enable Independent Team Deployments

Microservices and microfrontends allow different development teams to work independently on separate business areas within a single application. This architecture is designed for organizations with multiple teams that need to deploy features on their own schedules without coordinating large releases. It addresses the problem of one team's changes or bugs blocking another team's progress. The approach involves each team building, testing, and deploying its own vertical slice, including a dedicated API and user interface component. This structure is most beneficial for larger, established products but adds complexity and is not recommended for small teams or early-stage projects.

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ProgrammingDEV Community ·

Broadcom, Ford Among 21 Firms Changing Key SEC Financial Tag for 2025

A review of SEC filings shows 21 companies, including Broadcom and Ford Motor, stopped using the standard NetIncomeLoss tag for 2025 data. These firms instead reported annual results using the ProfitLoss tag in their 2025 10-K filings. The change affects data pipelines that rely on the NetIncomeLoss tag, making their 2025 figures appear missing. The switch highlights how evolving reporting standards can impact financial data analysis.

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ProgrammingDEV Community ·

Tech article outlines best practices for deleting user avatars to prevent lingering images.

A technical article published on DEV Community advises on secure avatar deletion processes for edtech platforms. It explains that deleting an image file does not automatically remove it from cached responses or other system references. The author recommends a multi-step deletion sequence starting with marking the avatar as retired in the user's profile. The process concludes by removing all stored objects only after all application references have been invalidated.

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ProgrammingDEV Community ·

Developer details lessons from building first HTML/CSS landing card UI

A developer built their first landing card user interface this week using only HTML and CSS. They created a simple card with a heading, paragraph, and button, focusing on clean presentation across laptops and phones. Key lessons included the importance of semantic HTML for structure and using Flexbox, padding, and shadows for styling. The developer's primary challenge was managing element spacing, and their next goal is to improve the card's responsiveness for smaller screens.

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ProgrammingHacker News ·

Vitalik Buterin supports crypto 'bunker mode' over AI threat to wallet security

Ethereum co-founder Vitalik Buterin has endorsed a defensive stance for the cryptocurrency sector. This follows warnings from researcher Justin Drake that artificial intelligence could break wallet security within months. The concern stems from rapid advances in AI's mathematical capabilities. The discussion originated in a Hacker News forum referencing a Cointelegraph report.

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ProgrammingHacker News ·

2015 Essay Argues Value in Communication That Avoids Directness

A 2015 essay by Ken Arneson, shared on Hacker News, discussed the merits of communication that does not immediately get to the point. Arneson suggested that indirectness can foster deeper understanding and stronger connections. The piece generated little discussion on the platform, receiving only six points and no comments. It presented a perspective on how the style of conveying information impacts its reception.

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