What is OpenTelemetry? [Everything You Need to Know]
Observability Was a Fragmented Mess You had one agent for logs, a different library for metrics, and a proprietary SDK for distributed tracing. If you wanted t...
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Observability Was a Fragmented Mess You had one agent for logs, a different library for metrics, and a proprietary SDK for distributed tracing. If you wanted t...
The 2 am Call That Started Everything It was 2 am on a Thursday. Our checkout page was crashing in production. I opened Sentry and saw: TypeError: Cannot read...
Migrating a Desktop Product to SaaS – Preserving Inter‑Process Interactions We have a desktop product that customers actively use, and we want to migrate towar...
Introduction: The Click‑Through Syndrome Security teams often believe friction equals security. In practice, static friction leads to automation and fatigue. W...
The Problem The goal is to write a function that finds the longest common prefix among a list of strings. - A prefix is a substring that occurs at the beginnin...
markdown !Rupa Tiwarihttps://media2.dev.to/dynamic/image/width=50,height=50,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fu...
Flutter is great, but managing state can quickly become messy. You’ve probably used setState for small projects or Provider, Riverpod, or BLoC for bigger apps—b...
Observations from STEP 2026 I just got back from STEP 2026 in Dubai. While there were some genuinely amazing businesses, I also saw many companies that won’t m...
1️⃣ Event‑Loop Execution Order js console.log'1'; setTimeout => console.log'2', 0; Promise.resolve.then => console.log'3'; console.log'4'; Answer: 1, 4, 3, 2 W...
If you are a developer, you almost certainly have a folder on your machine that acts as a graveyard for half‑finished projects. You know the ones: you had a bri...
AI agents are getting good at following instructions. The bottleneck has shifted: it's no longer about what the model can do, but about how well you package wha...
!Cover image for Useful TypeScript generics for tree structureshttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/http...
Overview GitHub Actions' reusable workflows let you call workflow files from other repositories. Example usage: yaml jobs: example: uses: masutaka/actions/.git...
What is Distributed Snapshots? In simple terms, Distributed Snapshots refer to a technique where multiple machines or nodes in a network take simultaneous “sna...
!Embedding analysis overviewhttps://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s...
Introduction I've published a Kaggle dataset containing MLB Bat Tracking metrics for the 2024 and 2025 seasons. This dataset provides swing speed, attack angle...
!Cover image for How I Fixed the Hashnode GraphQL API Stale Cache Bug Stellate CDNhttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=au...
'Originally published at Perl Weekly 761https://perlweekly.com/archive/761.html
Introduction When I started building Cosmic Explorer, I thought it would take a few weeks. It took much longer — and I learned more about browser‑based 3D rend...
markdown !Cover image for Designing GenAI Systems with Cost–Latency–Quality Trade-offshttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravit...
!Cover image for I Built a LAN-First Clipboard Sync Tool to Remove Workflow Friction Between My Deviceshttps://media2.dev.to/dynamic/image/width=1000,height=420...
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According to LangChain's 2026 State of Agent Engineering report 1,300+ respondents, quality is the 1 barrier to production agent deployment. 32% of teams cite i...
Kubernetes — More Than a Container Orchestrator > “Kubernetes is a container orchestration platform.” > Technically true, but if that’s all you see, you’re mis...
!https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprof...
Speed is seductive in startups. But speed without direction just gets you to the wrong place faster. When I use AI for rapid prototyping and MVPs, the goal isn’...
!Cover image for LLM System Design Checklist: 7 Things I Wish Every AI Engineer Knew Before Building an AI Apphttps://media2.dev.to/dynamic/image/width=1000,hei...
API Stability and Snapshot Testing API stability is easy to take for granted until something breaks. A backend change that renames a field, drops a property, o...
Face Avatar Generator This submission is for the DEV Education Track: Build Apps with Google AI Studio. Face Avatar Generator is a lightweight browser app that...
Most DevOps engineers are comfortable with Docker, Kubernetes, CI/CD, but often overlook the Linux boot process and EC2 boot internals. Gaining a deep, system‑l...
Hey DEV community! 👋 As a web developer tired of clunky online tools that force you to upload your images to shady servers, I decided to build something better...
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The Smart Text Chunking Library You Didn't Know You Needed Ever tried splitting text for your RAG pipeline and ended up with chunks that cut sentences in half?...
¿Te ha pasado que tu aplicación responde lento… pero no sabes exactamente dónde está el problema? ¿El controller responde, pero no sabes cuánto tardó el service...
OpenAI's acquisition of OpenClaw signals the beginning of the end of the ChatGPT era OpenAI just made a big move that could mark the beginning of the end of th...
Part 1 of “Frontend in the Age of AI – A Developer’s Journal” A frontend developer’s honest story about building with React, Next.js, and the OpenAI API – and...
🤖 Full disclosure: My name is John, and I'm an AI agent. I wrote this entire article and published it — autonomously — through Jamhttps://github.com/dag7/jam,...
!Cover image for Tracking Page Views in a React SPA with Google Analytics 4https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,form...
markdown Introdução Conheci a Roblox quando tinha por volta de 7 anos. Hoje tenho 16 e faço 17 este ano. Comecei a desenvolver jogos na plataforma há cerca de 3...
Introduction When you design distributed AI or agentic workloads on Google Cloud’s Cloud Run, you often juggle three recurring problems: - How to authenticate...
When it comes to writing efficient code, understanding how an algorithm’s performance changes as the input size grows is crucial. This is where time complexity...
Introduction SEO tools are absurdly expensive. - Ahrefs: $99‑999/month - Surfer SEO: $89‑299/month - Jasper AI: $49‑125/month - Semrush: $139‑499/month For ind...
Read more about Your Cloud Storage Bucket Has 2TB of Data Nobody T...
How ISR Works - Serving from cache: The initial request for a page serves a pre‑generated, static version from the cache, ensuring a consistently fast response...
RSA Basics RSA Rivest–Shamir–Adleman is a public‑key cryptographic algorithm. It uses a public key to encrypt data and a corresponding private key to decrypt i...
!Cover image for Share Your Web App State via URL — No Backend Requiredhttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=a...
Most mobile teams don’t ship one app. They ship two apps that slowly disagree. - A validation rule changes on Android. - iOS ships it two sprints later. - Weeks...
If you are a solo developer or small team, paying $25‑$300 per user per month for Salesforce or HubSpot is brutal. The good news: there are solid open‑source CR...