SShortSingh.
TopTechnologyAI & MLStartupsProgrammingScienceBusinessFinanceCrypto & Web3World

Programming

LatestTopDiscussed
0
ProgrammingDEV Community ·

WebRTC Encrypts Media by Default, But Full App Security Is Still the Developer's Job

WebRTC encrypts audio and video with SRTP and protects data channels with DTLS, so standards-compliant browser connections cannot send unencrypted media. However, this only secures the transport layer and does not make an entire application secure. Authentication, authorization, signaling, TURN access, server settings, recordings, and data handling remain the operator's responsibility. The article also notes that media servers which terminate and re-create connections can access media in between, meaning this is transport encryption rather than necessarily end-to-end encryption. It concludes that the protocol provides a strong foundation, while developers must secure the surrounding application.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Samsung firmware downgrades depend on bootloader version numbers

Flashing an older Samsung firmware over a newer one is sometimes possible, but the bootloader revision decides the outcome. Each build string contains a bootloader binary digit, and a phone will reject any firmware whose binary number is lower than its current one, with Odin reporting an SW REV check failure. Downgrades therefore work within the same bootloader generation, such as moving to an older build with the same binary, but typically fail when crossing a bootloader bump. Downgrading does not reset a tripped Knox counter, remove carrier locks, or necessarily fix bugs baked into the bootloader. The guide advises noting the current binary, comparing it with the target build, and backing up data first, since downgrades usually wipe user data.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

pyursa: A DataFrame Library Designed to Fail Loudly for AI Agents

The author argues that AI agents writing data code need libraries that expose mistakes rather than hide them, since agents often lack a human reviewer to catch silent errors. Pandas is cited as an example that can return wrong results without warning, such as an integer sum overflowing into a negative number. The new library, pyursa, responds with stable error codes, machine-readable JSON error output, and fix suggestions that an agent can apply directly. Errors are raised when the query plan is built, so mistakes surface before any data is processed. The library also enforces strict typing rules, including exact decimal arithmetic, rejecting lossy casts, and treating time zones as part of the type.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Node.js GitHub Actions Gate Blocks Leaked Keys and Risky Dependencies

A walkthrough describes a single GitHub Actions workflow that runs on every pull request to a Node.js project. It scans new commits for leaked API keys, checks newly added dependencies for known high-severity vulnerabilities, and verifies that the lockfile is consistent and pulls only from the npm registry over HTTPS. The author argues that reviewers tend to miss secrets in diffs and transitive dependencies buried in large lockfile changes, a problem worsened by AI coding assistants that hardcode credentials. Because deleted secrets remain in git history, the piece stresses rotation as the only real remedy once a key leaks. It also cautions that a noisy gate gets bypassed, and suggests that solo projects with no sensitive data may only need GitHub's free secret scanning and Dependabot alerts.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Product management for engineers: running user interviews that yield evidence

This chapter, part of a ten-part series on product management for engineers, focuses on discovery and how to talk to users without steering their answers. It opens with a scenario in which a backend engineer is asked to build a recurring-report feature based on a secondhand summary of a single user interview that reads more like a sales pitch than a transcript. The core lesson is that leading questions embed the interviewer's assumptions and push users toward agreement, which produces unreliable data. Instead, the chapter recommends open, contextual questions that reveal actual workflows, tools, and pain points. The chapter also lists setup prerequisites, such as recording tools, a consent template, and access to representative users.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

A Designer's Checklist for Delivering Web-Ready PNG-to-WebP Images

The author argues that poor image performance usually stems from handoff problems between designers and developers, not from the conversion tool itself. Designers should export sources at twice the intended display width so they stay sharp on zoom and high-density screens, and flatten photos and full-bleed images to remove unnecessary transparency. WebP versions should be delivered alongside the PNG originals with matching filenames as a standard part of the deliverable. Each asset should be documented with its display width, transparency requirement, and source location, and developers should run a short check for layout shift, legibility, transparency rendering, and sane file sizes. The author also recommends browser-local conversion so unreleased or confidential assets never leave the user's machine.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

QuantMLA's INT4/INT2 dual-path cache lifts long-context serving throughput over fivefold

Serving transformers with very long token windows often runs into memory bottlenecks that hinder real-time deployment. The QuantMLA approach uses a dual-path INT4/INT2 key-value cache, which reportedly yields more than five times the whole-job output throughput of a BF16 baseline under long-sequence pressure tests. Conventional BF16 caches grow linearly with sequence length, causing memory preemptions and recomputation that limit practical window sizes. At a 128k-token window, QuantMLA compresses the combined content and RoPE cache by 3.59 times and reportedly avoids preemption entirely. The authors stress that the gain comes from avoiding capacity-driven recomputation rather than from a faster attention kernel, and they caution that positional signals may degrade on tasks requiring fine-grained geometry.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

DeepLearning.AI and AWS Course Covers Source Systems, Batch and Streaming Ingestion, and Pipelines

A learner completed the second course in the DeepLearning.AI and AWS Data Engineering Professional Certificate on October 3, 2026, passing the final exam after hands-on AWS labs. The course covered how source systems generate and update data, how to connect to them, and how to troubleshoot common connection problems. Participants compared batch and streaming ingestion patterns and the ETL and ELT approaches, and built one pipeline of each type on AWS. The material also addressed orchestrating pipelines with infrastructure and pipelines as code, using Apache Airflow, along with monitoring tools for data systems and data quality. The author notes that choosing batch or streaming depends on the use case, while ETL versus ELT depends on whether transformation happens before or after loading.

0 comments Read more at DEV Community
0
ProgrammingHacker News ·

Nexus-CLI Offers Pure Go Bridge Linking DeepSeek R1/V3 with Claude Code and Ollama

A new open-source tool called Nexus-CLI has been shared on Hacker News, providing a bridge written entirely in Go. It connects DeepSeek's R1 and V3 models with Claude Code and Ollama. The project is hosted on GitHub and had gained three points with no comments at the time of posting. The available source material offers little detail beyond the project's name, description, and link, so its full capabilities are not described here.

0 comments Read more at Hacker News
0
ProgrammingHacker News ·

Study Argues Asking LLMs for Confidence Scores Is Unreliable

A blog post published on rumple.github.io argues that using large language models to self-report confidence scores is a poor practice. The piece was shared on Hacker News, where it gathered 48 points and 30 comments. The article's central claim is that the confidence values LLMs produce about their own answers do not reliably reflect how accurate those answers are. The source text provided is only metadata, so the specific reasoning and evidence behind this conclusion could not be verified in detail.

0 comments Read more at Hacker News
0
ProgrammingHacker News ·

Details of a Major PHP Vulnerability Surface Online

A post on jackalsyn.com reportedly discusses a significant security flaw in PHP, shared and circulated via Hacker News. The source material provided is limited to the link and discussion metadata, with no article body available to verify technical specifics. It is not clear from the available information which PHP versions are affected, how the flaw could be exploited, or whether patches exist. The discussion thread on Hacker News had gained five points and no comments at the time of retrieval. Readers should consult the original post and official PHP security advisories for verified details.

0 comments Read more at Hacker News
0
ProgrammingDEV Community ·

Developer builds Chucka, a personal morning briefing that sends a dashboard and voice note via WhatsApp

A developer built a personal automation called Chucka, also known as MorningDashboard, that sends a daily briefing to their own WhatsApp at 7am. The message includes a dashboard image rendered from live Obsidian vault files, covering top tasks, job pipeline and project status, along with a roughly one-minute voice note. The spoken script is generated by an LLM each morning and includes Melbourne weather, then converted to audio with a three-tier text-to-speech chain. The developer later open-sourced the project on 17 October 2026 and found that a message showing as sent only means it was queued, so the runner now waits for delivery confirmation.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Cómo aplicar DDD y arquitectura hexagonal en NestJS con un ejemplo práctico

Un servicio NestJS que empieza con controladores y llamadas directas a Prisma se vuelve difícil de cambiar cuando aparecen reglas de negocio como asignación de técnicos o tareas obligatorias. El artículo propone usar Domain-Driven Design para expresar ese comportamiento y la arquitectura hexagonal para controlar las dependencias. Como ejemplo, desarrolla una API de gestión de servicios con TypeScript, NestJS, Prisma y PostgreSQL, organizada en dos módulos: órdenes de servicio y visitas. Las reglas incluyen prioridades según el nivel de servicio, finalización condicionada a actividades completadas y programación de visitas sin solapamientos. El código completo está disponible en GitHub como implementación educativa.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Python Tutorial Validates Email Lists Using Syntax, DNS and Disposable Checks

A DEV Community how-to explains how to validate an email list in Python without connecting to recipients' mail servers. The method relies on an Apify actor that checks syntax, DNS/MX records, disposable domains and role addresses, avoiding slow SMTP connections that can get a sender's IP flagged. The author notes the tool discloses its own authorship and was built with AI assistance, and that it is a how-to rather than a benchmark. The guide includes sample API code and output, along with statuses such as deliverable_domain, disposable and invalid_domain. It cautions that the tool cannot confirm whether a specific mailbox exists, and that pricing is per validated email.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Applying DDD and Hexagonal Architecture to a NestJS API: A Practical Guide

The guide addresses a common problem in NestJS applications, where services grow to handle business rules, HTTP concerns, and database work together, making changes and testing harder. It uses a service-management API built with TypeScript, NestJS, Prisma, and PostgreSQL as its example, organized into two modules: service-orders and visits. Domain-Driven Design is used to express business behavior as named operations, while Hexagonal Architecture controls dependencies between the business logic and external technologies. The author presents the example as an educational implementation, acknowledging its concrete limitations alongside its benefits. The complete code is published in a GitHub repository called nest-ddd-hexagonal.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Scan Finds 8.16 Million WordPress Sites, 5.16 Million Resolving to the US

A measurement session on 20 October 2026 counted about 8.16 million internet-facing WordPress assets, with roughly 5.16 million located in the United States. The analysis notes that US geography largely reflects where cloud hosting regions sit, not where site owners are based. The author argues that the real security risk lies in third-party plugins and themes, whose versions are often invisible to external scanning. Web server totals for Apache httpd and nginx are presented as context for scale rather than as direct security indicators. The piece recommends organizations inventory WordPress installations and track plugin versions internally, using external counts only for completeness checks.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

ServiceNow Updates CAD Exam Blueprint With Six Domains and Study Guidance

ServiceNow revised its Certified Application Developer exam blueprint in January 2026, listing six domains, with four carrying equal 20% weights and two at 10%. The article suggests a 40-hour study split that mirrors these weights and recommends extra practice on scripting. It advises building a small scoped app on a free Personal Developer Instance to cover the blueprint's sub-topics, while noting such instances are reclaimed after 10 days of inactivity. The exam consists of 60 questions in 90 minutes, delivered via Pearson VUE, priced at 300 learning credits or by credit card. No prerequisite is listed, though six months of hands-on experience is recommended, and ServiceNow does not publish the pass mark.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Choosing the Right Minecraft Export Format for Image Builds

Picking the correct file format depends mainly on your Minecraft edition and the tools you plan to use. For Java Edition players using Litematica, the .litematic format offers an in-game hologram to guide manual placement. WorldEdit or Axiom users are better served by .schem files, while .nbt suits vanilla structure-block workflows within size limits. Commands or datapacks call for .mcfunction files, and Bedrock or manual builders can rely on a labelled PNG blueprint paired with a CSV material list. The article also notes that the format is a handoff between block layout and construction, not a quality setting, so the build's palette and material counts still need checking.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Audit Flags High-Severity Reentrancy and Access Control Issues in Gate Protocol

A security audit conducted from October 1 to October 18, 2024, reviewed reentrancy and access-control mechanisms in Gate, a cross-chain liquidity platform reportedly holding over $7 billion in user assets. The review identified six access-control issues and four reentrancy issues, with several rated high severity. Auditors warned that these flaws could enable unbounded fund extraction or allow attackers to seize privileged functions such as pausing or upgrading the protocol. The protocol received an aggregate risk score of 8.2 out of 10, and the auditors recommended remediating the high-severity findings before any further capital inflows.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Long Context Windows Don't Make RAG Obsolete, Argues Developer

A DEV Community author contends that larger model context windows change how much material gets retrieved but do not eliminate the need for retrieval. Anthropic's guidance suggests that knowledge bases under roughly 200,000 tokens can be placed directly into a prompt, especially with caching, though it notes larger bases need scalable solutions. The author cites Google's documentation on per-query token costs and latency, and research such as "Lost in the Middle" and Chroma's "Context Rot" report showing that models struggle to use information buried in long inputs. The piece also argues that retrieval enables document-level updates and per-user access controls that a static stuffed prompt cannot easily provide.

0 comments Read more at DEV Community
← NewerPage 201 of 2988Older →