How to Build a Fault-Tolerant Strapi Webhook Receiver with Idempotency and Retry Logic

A technical tutorial published on DEV Community outlines how to build a reliable Strapi webhook receiver that handles three common failure modes. Because Strapi retries failed webhook deliveries, receiving endpoints can process the same event more than once, potentially causing duplicate records or silent data loss. The guide demonstrates using idempotency keys derived from event metadata to reject duplicate deliveries before any processing occurs. An Express-based service acknowledges incoming webhooks immediately, then processes events asynchronously with exponential backoff to handle transient downstream failures. Events that fail permanently are written to a dead-letter database table rather than being silently dropped, making failures visible and recoverable.

Why P95 Latency, Not Averages, Is the Real Metric for Free AI APIs

Developers using free AI API tiers often misread performance by relying on average response times rather than tail latency, according to a technical analysis published on DEV Community. The article argues that the 95th percentile of time-to-first-token is the critical measure, since a model averaging 800ms but spiking to six seconds at p95 will feel broken to users. Free-tier endpoints run on shared infrastructure, making latency less predictable and more dependent on other tenants' usage patterns. The author recommends a lightweight async Python script to measure p50 and p95 latency across multiple requests, run at different times of day and from user-proximate regions. Practical mitigations include enabling streaming responses and capping concurrent requests with a semaphore to avoid retry penalties on rate-limited free endpoints.

Spike in Turkish military flights to Pak between Aug 19-21 raise eyebrows in India

Token Limits Can Train Developers to Write More Efficient AI Prompts

A perspective piece published on DEV Community argues that working within strict token limits helps developers build better prompt engineering habits. The author contends that when tokens are treated as a finite resource, prompts tend to become more focused and produce sharper model outputs. The article uses the analogy of a novelist constrained by a word count, suggesting that scarcity encourages discipline while abundance breeds inefficiency. The piece was written as part of outreach for MonkeyCode, an open-source project offering free model access and a ten-million-token allowance, though the author notes these terms may change. A sample shell script is included to help developers compare token costs between a verbose and a minimal version of the same prompt.

Git Workflow Explained: From Local Tracking to GitHub Collaboration

Git is a version control system that runs locally on a computer, enabling developers to track file changes, manage branches, and revert to earlier versions of a project. Unlike Git, GitHub is a cloud-based platform where repositories can be stored and shared for team collaboration. The core Git workflow involves four steps: staging changes with 'git add', saving them with 'git commit', and uploading to GitHub using 'git push'. A local project folder can be turned into a Git repository using 'git init', then linked to a remote GitHub repository via 'git remote add origin'. Mastering this edit-stage-commit-push cycle provides a solid foundation for effective version control and collaborative development.

Gujarat Hostel Ragging Case: Student Allegedly Beaten, Blackmailed by Seniors

A ragging case has emerged at a hostel in Gujarat involving serious allegations against senior students. According to a complaint filed by a student's parent, the seniors repeatedly assaulted the victim using slippers and sticks. The accused allegedly forced the junior student to perform personal chores and give body massages. Seniors also reportedly compelled the student to smoke cigarettes while filming him, using the footage as blackmail material.

INS Sudarshini in Lisbon to boost India-Portugal naval partnership

Why August can be a hungry month for honeybees despite summer

A Reliable Meat Thermometer Is Your Best Defense Against Salmonella

Salmonella outbreaks have been occurring with increasing frequency, raising food safety concerns among consumers. Cooking meat to the correct internal temperature remains one of the most effective ways to prevent infection. A quality meat thermometer, or temperature probe, serves as a critical tool in ensuring food is safely cooked. Experts highlight that proper temperature monitoring is the final and most reliable safeguard against harmful bacteria. Using a probe thermometer at home can significantly reduce the risk of salmonella contamination in cooked meals.

Why JSON-LD Structured Data Determines If AI Answer Engines Cite Your Site

AI answer engines face two distinct challenges with any webpage: crawling it and understanding its content. Structured data, specifically schema.org JSON-LD, solves the second problem by explicitly labeling what a page is and what it contains, removing the need for engines to guess. While many sites technically include structured data, the real issue is incomplete schema blocks that pass validation checks but lack critical fields like author, publication date, or FAQ content. Malformed JSON-LD is silently discarded by parsers, meaning a broken block offers no benefit despite appearing present in the page's HTML. Choosing the right schema type per page and filling in all citation-critical fields is what determines whether an AI engine confidently cites a source or defaults to a competitor.

High test coverage hid nine real flaws in Engrava until mutation testing exposed them

Engrava's test suite boasted 3,845 tests and 94.22% line coverage, yet a mutation audit run before the 0.6.0 release uncovered nine distinct weaknesses across three categories. The core problem is that line coverage only confirms a line of code was executed, not that any test would detect if that line were incorrect or removed. Six of the findings involved validators that checked an input value but then continued using the original, unvalidated object — meaning the validation result was silently discarded. Those six issues were only reachable by code already running inside the same process, posed no cross-trust-boundary risk, and required no CVE or patch to prior releases. All nine issues were fixed, with the team noting that even unexploitable guards are worth correcting because the defensive pattern applies in contexts where callers are less trusted.

Ads and tracking infiltrated TVs. Now they're coming for monitors.

Monitor vendors are playing with fire.

How to Stress-Test Document Software Using 20 Carefully Chosen Files

A structured 20-file test kit can reveal how well document management software handles real-world conditions beyond basic happy-path scenarios. The recommended file set includes phone scans, duplicate names, invoice and agreement types, draft-final pairs, and files with varying access permissions. Testers are advised to evaluate upload reliability, full-text search within scans, version history accuracy, and access control enforcement across multiple users. A repeatability check — adding five more files without changing the filing method — helps determine whether the workflow will scale to archive size. The author, who builds a document platform called Stoatify, has also published a free 12-point evaluation worksheet compatible with any product.

Android SDK Tutorial Shows How to Manage Robot Battery and Power Systems in Kotlin

A new technical tutorial published on DEV Community outlines how to build a production-grade Android SDK in Kotlin for managing battery, power, and charging systems in autonomous mobile robots. The guide covers key components including real-time battery telemetry streaming, thermal monitoring, and a finite state machine for docking orchestration. It addresses critical challenges in industrial robotics such as preventing unexpected power loss mid-mission, which can cause operational downtime or safety hazards. The SDK architecture layers a hardware abstraction layer beneath high-level interfaces exposed to mission planners and user interfaces. Core modules described include a BatteryTelemetryManager using Kotlin StateFlow, a DockingOrchestrator FSM, and a ThermalGovernor for emergency thermal protection.

RAG Research Digest: Ingest-Time Compilation Outperforms Query-Time Methods

A cluster of arXiv papers published between August 17–24, 2026 examined advances and limitations in retrieval-augmented generation (RAG) and GraphRAG systems. One key study found that pre-computing semantic claims at index time achieved 85.2% correctness compared to 72.5% for standard chunk-based RAG, while incremental index updates proved 33.7 times cheaper than full rebuilds. Another paper, LineageRAG, improved GraphRAG auditability by grounding each reasoning hop in verbatim source text, outperforming leading baselines on multiple multi-hop QA benchmarks. Research on agentic RAG revealed a critical weakness: automated failure diagnosis drops to zero accuracy beyond the first reasoning hop, raising concerns for explainability tooling. A separate study also found that RAG systems serve outdated facts more than a third of the time when applied to evolving software codebases.

Developer Documents Java, Spring Boot and AI Learning Journey on DEV Community

A new DEV Community member has announced plans to publicly document their learning journey covering Java, Spring Boot, and AI/Machine Learning fundamentals. Rather than keeping private notes, they will publish beginner-friendly summaries of what they learn each day. The effort will be organized into two ongoing series: Spring Boot Journey and AI Learning Log. The posts are intended to be simple and accessible, avoiding technical jargon for those starting from scratch. The author is inviting fellow learners to follow along, contribute their own notes, and engage with the content.

Git Stash and AWS RDS Private Flag: Hidden Behaviors That Cost Developers Time

A developer working through KodeKloud Engineer platform tasks uncovered two non-obvious behaviors in Git and AWS that are absent from standard interface feedback. Git's stash command stores uncommitted work as a real commit under refs/stash, but it never appears in git status, branch history, or remote pushes, making it easy to lose work if the local machine becomes inaccessible. A key gotcha is that git stash apply restores files as modified but not staged, so a follow-up commit requires a manual git add before it will have anything to commit. On the AWS side, creating a private RDS MySQL instance via CLI revealed that 'private' is not determined by subnet placement but by the --no-publicly-accessible flag, which controls whether AWS assigns a publicly routable DNS name to the instance. Omitting that flag on a private-subnet database still results in AWS advertising it publicly, a detail the RDS console wizard never surfaces to the user.

India Near 100th GM: Do Chess Aspirants Really Need Expensive Coaches?

As India approaches a milestone of 100 Grandmasters, veteran GM Pravin Thipsay has questioned the growing chess coaching industry, calling it an 'unfortunate racket'. He argues that costly training is largely unnecessary and that independent thinking plays a more significant role in a player's development. However, GM Aaryan Varshney offers a differing view, maintaining that expert guidance remains valuable even in the modern computer-aided training era. The debate highlights a broader conversation within Indian chess about what it truly takes to achieve the Grandmaster title.

llms.txt: The AI Content Guide File That Controls Nothing but Clarifies Everything

llms.txt is a proposed community convention, introduced at llmstxt.org in late 2024, that places a hand-curated Markdown file at a website's root to help large language models quickly identify the most important pages. Unlike robots.txt, it does not control crawler access in any way — it simply acts as a prioritised table of contents for AI agents working within limited context windows. The file is deliberately minimal, using standard Markdown with a site name, optional summary, and categorised links to key pages. It differs from sitemaps, which exhaustively list all URLs, and from structured data, which annotates individual pages rather than guiding site-level navigation. Adoption is growing mainly among documentation sites and developer tools, though whether major AI answer engines actively read it remains an open and honestly unresolved question.

'Failure of judicial system': SC on 45-year-old case