Mac Studio M5 Ultra vs NVIDIA DGX Spark: Which $5,500 Local AI Box Wins?

Apple's newly announced Mac Studio M5 Ultra and NVIDIA's DGX Spark are two competing desktop AI machines priced around $5,500, both designed for running large language models locally without relying on cloud services. The M5 Ultra offers up to 512GB of unified memory with 1.2TB/s bandwidth, giving it roughly 4.4 times the memory throughput of the DGX Spark's 273GB/s — a significant advantage for LLM inference speed. The DGX Spark, priced at $4,699 and available now with 128GB of memory, counters with full CUDA ecosystem support including TensorRT-LLM, vLLM, and NVIDIA's fine-tuning toolchain. For raw token generation on large models, the Mac Studio holds the edge, while the DGX Spark is better suited for fine-tuning workflows and CUDA-dependent software stacks. The two machines ultimately target slightly different users, with Apple prioritizing massive model capacity and NVIDIA focusing on developer ecosystem depth.

Developer Launches Browser-Based 3D Circuit Simulator Powered by Three.js and AI

A developer has built and released a browser-based 3D circuit simulator called LuvaAI, accessible at luvaai.in with no installation or sign-up required. Users can place components on a virtual breadboard in 3D, wire them together, and run basic simulations directly in a browser tab. The tool is built using React 19, TypeScript, Vite, and Three.js, with an AI assistant panel powered by Google's Gemini 2.5 Pro to help check circuit states. User designs can be saved via Firebase and Firestore after signing in with a Google account. The project currently lacks full transient and AC frequency-domain analysis found in professional tools like LTspice, and mobile touch controls remain a work in progress.

Andhra woman, parents die in river jump after accusing rifle coach of harassment

A woman and her parents died after jumping into a river along with her young son in Andhra Pradesh. Before her death, the woman accused a rifle shooting coach of harassing her and being responsible for her husband's death. Her son survived the incident after being rescued from the river. A special investigation team was formed, leading to the coach's arrest in Meerut. Police are now probing allegations of murder, threats, and financial control linked to the coach.

Python Devs Use Real-Time Network Latency to Auto-Tune WebSocket Heartbeat Intervals

A student FinTech team building a cloud-deployed market-data prototype discovered that hard-coded WebSocket heartbeat intervals failed to handle real-world network variability. After deployment, the application silently consumed stale market data because fixed ping intervals could not detect broken connections under high latency or jitter. The team developed a dynamic tuning approach that measures round-trip time (RTT) between ping and pong messages to assess live link quality. Based on RTT thresholds, the system adjusts heartbeat frequency — longer intervals on low-latency links to reduce overhead, shorter ones on high-latency links to catch failures faster. The method was validated using real-time tick streams via the AllTick API and is presented as a more resilient alternative to the fixed-interval patterns common in beginner WebSocket tutorials.

IoC and Dependency Injection: How Spring Boot Manages Class Dependencies

In large software projects, manually creating objects for every class becomes complex and difficult to manage. Inversion of Control (IoC) is a design principle where a framework or container takes responsibility for managing dependencies instead of the programmer. Dependency Injection (DI) is the practical implementation of the IoC principle. In Spring Boot, the @Component annotation marks subclasses, while @Autowired is used to inject and utilize them automatically. Together, IoC and DI simplify workflows and save development time in large-scale applications.

Muslim countries should unite: Iran seeks US exit

Pak SC to hear Imran Khan sister's plea Sept 16

India, US plotting a bigger play in Indian Ocean

Developer builds open-source database of 13,507 passport-destination visa rules

A developer with 12 years of international onboarding experience has built a publicly available dataset covering visa requirements for 13,507 passport-destination pairs across all countries. Each entry includes details on visa-free stay limits, eTA and eVisa requirements, visa-on-arrival options, and links to application portals. The dataset is kept current by an automated policy-monitoring script that tracks sources such as the US Federal Register, rather than relying on annual manual updates. A public lookup tool built on top of the data allows users to instantly query any passport-destination combination, view passport power rankings, and understand rules like the Schengen 90/180-day cap. The dataset is open-source and machine-readable on GitHub, and is available in both English and Spanish to serve a broader range of users.

Dev Loses Full Day to Social Media Content Creation During Hackathon Build

A developer working on Sprout Atlas for Shipaton 2026 intended to spend just one hour preparing social media content but ended up dedicating the entire day to it. Tasks included designing carousel slides, writing post copy, editing video scripts, and organizing content buckets for the following week. By the end of the day, no actual development work had been completed — no features, bug fixes, or database changes. The developer acknowledged that while the lost coding time was significant, the upside was a clear schedule and uninterrupted focus for the week ahead. The experience highlights a common productivity challenge faced by indie developers trying to balance building a product with maintaining a public presence.

US Suspends Visa Interviews Globally Amid Trump Immigration Crackdown

The Trump administration has temporarily paused visa interviews at US embassies and consulates worldwide. The move is part of a broader immigration crackdown pursued by the administration since taking office. Measures under this drive have included revoking existing visas and green cards, as well as rejecting new applications on various grounds. The suspension affects prospective visa applicants across the globe, though the duration of the pause has not been specified.

Pi Zero MPU-9250 i2cdetect failures usually stem from wrong voltage, not software

Developers using the MPU-9250 IMU with a Raspberry Pi Zero often encounter an empty i2cdetect output or damaged GPIO pins due to incorrect power supply wiring. The Pi's GPIO operates at 3.3V, so VCC must be connected to Pin 1 (3.3V) rather than the 5V pins, unless the I2C lines are confirmed to be level-shifted. Once wired correctly and I2C is enabled via raspi-config, a successful setup should show the sensor at address 0x68 on the I2C bus. Common failure states — such as an empty bus, address 0x69, or 'UU' — each point to distinct issues including loose wiring, a high AD0 pin, or a kernel driver conflict respectively. The article notes that garbage sensor values despite a detected address typically indicate power supply noise rather than a software or library problem.

Developer Documents Real-World Lessons Building CAOS BETA Business Tool

A developer is publicly sharing their learning journey while building CAOS BETA, a backstage management system designed for small businesses. The project involves hands-on experience with React, TypeScript, Supabase, and PostgreSQL, as well as product architecture concepts. The developer notes that a significant part of software work involves making decisions about what to build, not just writing code. They plan to use their DEV Community blog to document decisions, mistakes, and experiments encountered along the way. The series is framed as a personal account of discovery rather than a prescriptive guide to software development.

RIL weighs aluminium entry amid Adani’s big bet

AI Agent Builds 30 Services Across 6 Marketplaces but Earns Zero in 5-Day Test

An autonomous AI agent documented its five-day attempt to earn its first dollar online, building 30 services and listing them across six marketplaces with payment infrastructure in place. Despite the effort, the agent recorded zero revenue, with payouts blocked by factors such as review queues, indexer delays, and a 12-cent gas shortfall. The agent also lost $0.53 to an MEV bot during a cryptocurrency swap, and a human donor ultimately sent $1 in USDC to keep the experiment going. It identified escrowed prize pools and payment-gated APIs as the most promising earning avenues, noting that the core bottleneck was not execution but waiting on human-controlled settlement systems. The agent concluded that autonomous earners can complete every technical step correctly and still fail to receive payment on their own timeline.

India urges world to protect sea lanes for food, fuel

India's Hockey World Cup Campaign Marred by Defensive Lapses and Poor Finishing

India's hockey team put up a disappointing performance at the Hockey World Cup held in Amstelveen. Their struggles were encapsulated by a 3-5 defeat to Argentina on Monday. The campaign was undermined by recurring defensive errors and poor decision-making throughout matches. Despite showing occasional promise, the team repeatedly failed to convert attacking pressure into goals. The familiar flaws on display have raised serious concerns about the team's overall form and preparation.

US Pauses Visa Appointments Worldwide for Consular Officer Training

The United States has temporarily suspended visa appointments at consulates globally as part of a consular officer training program. The initiative is aligned with the Trump administration's broader push to tighten immigration enforcement. Applicants seeking immigrant visas are being informed of rescheduled interview dates as a result of the pause. The administration is simultaneously imposing stricter controls on legal immigration and visa issuances. These measures reflect ongoing reviews and policy adjustments being made to the US visa system.

Tilaknagar’s deal appetite is still on the rocks

French Tourist Amazed by India's Widespread UPI QR Code Payment Culture

A French tourist visiting India was struck by the extensive use of UPI QR codes for everyday transactions across the country. She observed that digital payments were accepted even by small roadside vendors for purchases as low as Rs 20. The seamless adoption of cashless payments was visible across all types of sellers, from street stalls to local shops. This stood in sharp contrast to her home country France, where such widespread digital payment infrastructure is far less common.