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I Built a Redis Clone from Scratch in Node.js — RESP, Persistence, Replication, Pub/Sub and Transactions

Most of us use Redis like this: SET name Alice GET name It feels simple. You send a command. Redis stores something. You get the value back. But I wan…

redisbackenddistributedsystemsnode
Dev.to Jun 17, 2026, 08:40 UTC
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BrowserAct Hands-On: Real Browser Automation from the CLI

A few days ago, I received an email from the BrowserAct team after they came across one of my articles. They introduced BrowserAct as a browser automa…

aiautomationtoolingproductivity
Dev.to Jun 17, 2026, 08:37 UTC
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Zero-JS Wasn't Enough: Edge Caching SSR HTML on Cloudflare Workers

The previous article ended with a confession: same build, two PageSpeed runs two hours apart, desktop Performance 99 and then 90. I blamed first-scree…

astrocloudflarecacheperformance
Dev.to Jun 17, 2026, 08:18 UTC
EN

Devlog: Performance Optimization Lessons from ADHD App Beta Testing

TL;DR: The biggest performance and reliability work was not a fancy animation pass. It was fixing the task recommendation pipeline: removing non-trans…

reactnativeperformanceadhddevlog
Dev.to Jun 17, 2026, 08:16 UTC
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Pre-launch AI simulations are becoming the new model safety check

The next serious upgrade in AI safety may not look like a bigger warning label. It may look like a rehearsal. OpenAI published new work this week on p…

aiproductivitywebdevtutorial
Dev.to Jun 17, 2026, 08:04 UTC
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From Idea to App Store Screenshots Without a Designer

You built the app. It works. Then you open App Store Connect and it asks for screenshots, and you realize the thing standing between you and "submit" …

asoappstoremobiledesign
Dev.to Jun 17, 2026, 08:03 UTC
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Part 8: Persistence and State - EF Core, Migrations, and Reliability

In the last part, we looked at how expressions make your workflows dynamic. Today, we are discussing the backbone of any production-ready system: Pers…

dotnetarchitecturecsharpdatabase
Dev.to Jun 17, 2026, 08:01 UTC
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PostgreSQL vs MySQL for API Automation Workflows

What You'll Need n8n Cloud or self-hosted n8n instance Hetzner VPS or Contabo VPS for self-hosted database deployment DigitalOcean as an alternative h…

tutorialdevopsdatabaseapiintegration
Dev.to Jun 17, 2026, 08:00 UTC
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The Pentester’s Guide to Finding CBC Bit Flipping Vulnerabilities

If you spend enough time poking at web applications, you’ll eventually run into a target that handles session management poorly. You’ll intercept a re…

bugbountywebtestingcryptographywebsecurity
Dev.to Jun 17, 2026, 07:36 UTC
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I Failed a Python Interview Because I Could Write Code But Not Read It

I want to tell you about the most embarrassing 45 minutes of my developer career. I had been practicing LeetCode for three months. Easy problems, done…

programmingpythonaibeginners
Dev.to Jun 17, 2026, 07:23 UTC
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Winograd convolutions cost us 2 mAP and we didn't notice for a month

TL;DR: We turned on Winograd convolution to shave latency off a pedestrian detector running on a Cortex-A53, got a clean 18% speedup, and silently los…

computervisionpytorchmachinelearningmlops
Dev.to Jun 17, 2026, 07:22 UTC
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Ollama Structured Outputs in Practice — Getting Type-Safe JSON from Local LLMs with Pydantic

json.loads(response) fails at a certain point. You told the model "return JSON only," but it added a ```json markdown code fence around everything. A …

aillmpythontutorial
Dev.to Jun 17, 2026, 06:38 UTC
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Startup Security Guide & LLM CISO

An open-source security guide, compliance checklist, and LLM-based virtual CISO persona for startups -- with specialized coverage for foreign companie…

aisecuritycybersecuritykorea
Dev.to Jun 17, 2026, 06:27 UTC
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The Playwright Playbook — Part 3: Multi-User, Multi-Tab & Browser Context Testing

The Playwright Playbook — Part 3: Multi-User, Multi-Tab & Browser Context Testing "Most frameworks test one user at a time. Real apps don't work t…

playwrighttestingtypescriptautomation
Dev.to Jun 17, 2026, 06:27 UTC
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Fire-and-forget AI engineering: letting agents ship a production app unsupervised

"An AI agent just built a production landing page, with GDPR audit logs and encryption baked in. I wasn't even at my desk." That is not a lucky one-sh…

aiopensourcedevopsarchitecture
Dev.to Jun 17, 2026, 06:24 UTC
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Headless Browser Detection in 2026: What Still Trips Up Playwright

Playwright is the best browser automation library in 2026. It's also the most fingerprinted, the most detected, and the most patched in anti-bot datab…

nodeautomationwebdevsecurity
Dev.to Jun 17, 2026, 06:24 UTC
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What is Block-Oriented Network Simulator (BONeS) 🦴?

📜 Before many modern networking tools existed, engineers were already using a graphical software environment called Block-Oriented Network Simulator (…

softwareprogrammingnetworkinglearning
Dev.to Jun 17, 2026, 06:22 UTC
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Building and Deploying Spring Petclinic Microservices on AWS: My Experience as Co-Project Lead and App & Docker Lead

Introduction As part of the DMI (DevOps Micro Internship) Cohort 2, our team successfully deployed the Spring Petclinic Microservices application on A…

awsdevopsdockermicroservices
Dev.to Jun 17, 2026, 05:35 UTC
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Claude Code in Production: The Guardrails Nobody Talks About (Until Something Leaks)

Your Claude Code session just spit out a perfect PR description, refactored three services, and drafted commit messages for the entire sprint. Clean. …

aiprogrammingdevrelsecurity
Dev.to Jun 17, 2026, 05:08 UTC
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Lesson 1.3 - GraphQL for Screen Complexity and App Changes

Good morning, class! Welcome back. In our last lesson, we explored how GraphQL fundamentally addresses the issues of over-fetching and under-fetching.…

apimobilereactnativetutorial
Dev.to Jun 17, 2026, 05:07 UTC
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Retrieval‑Augmented Memory Reduces Sliding‑Window Limitations in Video Models

VideoMLA’s low‑rank latent KV cache cuts KV‑cache demand by roughly 90 % and LongLive‑RAG’s retrieval‑augmented memory helps mitigate the temporal dri…

aimachinelearningabotwrotethis
Dev.to Jun 17, 2026, 05:00 UTC
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From ML Tooling to Analytical Governance: Recent Updates to KMDS

Over the last few months I've been refining KMDS, a framework for building repeatable and auditable machine learning systems. The original motivation …

aiproductivitypythonmlops
Dev.to Jun 17, 2026, 04:32 UTC
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The AI App Nobody Audited (And What Happened Next)

Hey There, Let me tell you about a situation that plays out more often than you'd think. A Fintech startup builds an internal AI-powered assistant on …

Dev.to Jun 17, 2026, 04:31 UTC
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SpaceX Acquires Cursor Maker Anysphere to Build an AI Coding Agent Model

SpaceX's acquisition of Anysphere, the maker of Cursor, signals a major shift in how we build software. Coding agents started as simple helper panels …

agentsainewstooling
Dev.to Jun 17, 2026, 04:18 UTC
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What actually stays private on Midnight! (A builder's mental model)

Intro Coming from the XRPL, the challenge for me has been grasping what actually stays hidden on a privacy chain and how they acomplish that. On a tra…

architectureblockchainprivacyweb3
Dev.to Jun 17, 2026, 04:12 UTC
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SharePoint silently retired the EnableAzureADB2BIntegration setting in May — and your old guest links break in July

If you administer a SharePoint Online tenant, the EnableAzureADB2BIntegration setting is the thing you used to flip to choose between the legacy Share…

microsoft365sharepointsecuritydevops
Dev.to Jun 17, 2026, 04:03 UTC
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Block the Merge if the Model Isn't Ready": Shifting Local AI Evaluations Left with CI Gates

We’ve all heard "it works on my machine," but when it comes to AI-driven features, that phrase is a recipe for disaster. You can have a perfectly test…

aillmopensourcerust
Dev.to Jun 17, 2026, 03:30 UTC
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AI Made Development Faster. Testing Needs to Stop Living in Spreadsheets.

AI agents are making software development faster. That is great. But there is a problem I do not think we are talking about enough: testing is not spe…

aitestingdevtoolsproductivity
Dev.to Jun 17, 2026, 03:29 UTC
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How to Call Windows Native APIs in Electron

How to Call Windows Native APIs in Electron Calling Windows native APIs in an Electron app feels like wanting to see the ocean but only having a map. …

electronwindowsnode
Dev.to Jun 17, 2026, 03:22 UTC
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I Stopped Using Heavy IDEs. AI Became My IDE.

I used to think a serious developer needed a serious IDE. Big project? Open PhpStorm. Design work? Open Photoshop. Need every refactor, every inspecti…

aiwebdevproductivityvscode
Dev.to Jun 17, 2026, 03:19 UTC

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