Tech News
All News AI & ML Architecture DevOps Open Source Programming Team Management Testing & QA Web

Open Source

⚑ Report a Problem

Latest Open Source news from Tech News

All topics AI agents ai api architecture automation aws beginners career claude database devchallenge devops javascript linux llm machinelearning mcp opensource performance productivity programming python react security showdev softwareengineering tutorial typescript webdev
All EN RU
EN

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
EN

You Already Know What Your First AI Rule Should Be. You Just Have Not Written It Down Yet.

Every developer who works with AI regularly has a list of corrections they make. Not a written list. A mental one. The things they fix after every ses…

reactaiwebdevproductivity
Dev.to Jun 17, 2026, 07:33 UTC
EN

Building a static repository for print-perfect PDFs

Most print-ready websites are slow, bloated, and covered in ads. I wanted to build a clean directory for paper templates that loads instantly and prin…

webdevcssshowdevperformance
Dev.to Jun 17, 2026, 07:20 UTC
EN

Why I stopped using cloud-based JSON and XML formatters (And what I built instead)

As developers, we constantly copy-paste data into online formatters, decoders, and tools. But have you ever stopped to think where that data goes? If …

webdevprogrammingproductivitytools
Dev.to Jun 17, 2026, 07:18 UTC
EN

The Biggest Challenges Software Developers Are Facing in 2026

Software development is evolving faster than ever, but developers are facing several new challenges: 🔹 Keeping Up with AI Tools AI coding assistants i…

aiwebdevprogrammingproductivity
Dev.to Jun 17, 2026, 07:16 UTC
EN

Overcoming Architectural Dogma: Why Infrastructure is a Business Stage Decision

One of the most persistent traps in modern software development is the tendency to turn architectural styles into absolute dogmas. We see it constantl…

aiwebdevprogrammingproductivity
Dev.to Jun 17, 2026, 06:33 UTC
EN

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
EN

CBC Bit Flipping Explained: Why Encryption Alone Doesn't Guarantee Integrity

Most developers learn a hard lesson at some point in their careers: just because data is encrypted doesn't mean it’s safe from tampering. It’s an easy…

cryptographysecuritybugbountywebdev
Dev.to Jun 17, 2026, 05:25 UTC
EN

Building Better Product Experiences Through Quiet Improvements

Yesterday was focused on the kind of product work that often happens behind the scenes but directly affects the quality of the user experience. The te…

webdevprogrammingproductivityarchitecture
Dev.to Jun 17, 2026, 05:22 UTC
EN

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
EN

Sunset Your API Endpoints on Purpose: The Deprecation and Sunset Headers

Killing an API endpoint is easy. Killing it without breaking your consumers is the hard part. Most teams announce a deprecation in a blog post, send o…

apiwebdevtutorialhttp
Dev.to Jun 17, 2026, 02:20 UTC
EN

Web-Based Security Assessment Platform Using Python, Flask & Open-Source Security Tools

A centralized web-based security assessment platform built with Python and Flask that integrates Nmap, Nikto, WhatWeb, Gobuster, and OWASP ZAP for aut…

webdevcybersecuritypython
Dev.to Jun 17, 2026, 02:14 UTC
EN

The AI Agent Payment Wars Have Begun — Here's What Actually Matters

Visa announced this week that AI agents can now use credit cards. Mastercard launched a protocol for AI-to-AI payments and micropayments. Catena Labs …

aipaymentswebdevcrypto
Dev.to Jun 17, 2026, 02:00 UTC
EN

The worked example that disagreed with its own calculator

I run a small site of home-improvement cost calculators ( costto.build ) — pick a project, get a low / average / high estimate with a materials-and-la…

webdevnextjsjavascript
Dev.to Jun 17, 2026, 01:17 UTC
EN

D1 read replicas returned stale data for 6 seconds — here's what I measured and how I designed around it

At p99, a D1 read replica in Tokyo was 6.1 seconds behind a write that landed on the Eastern NA primary. I found this out not from the docs, but from …

cloudflareserverlesswebdevtutorial
Dev.to Jun 17, 2026, 01:08 UTC
EN

Distributing a Python desktop app on Windows and Mac — the full release pipeline

WP Maintenance Manager ships from a single Python codebase to both Windows and macOS. "Python is cross-platform — write once, run anywhere," the sayin…

pythonwebdevprogramming
Dev.to Jun 17, 2026, 00:27 UTC
EN

Coding Burnout is Real: Build a Stress Warning Dashboard with Oura Ring & GitHub

We’ve all been there: it’s 2 AM, you’re deep in a "Refactoring Rabbit Hole," your coffee is cold, and your heart is racing. You feel productive, but i…

webdevaiproductivityopensource
Dev.to Jun 17, 2026, 00:15 UTC
EN

The Hidden Cost of Context-Switching Between Side Projects (And the Workflow That Ended It)

The Hidden Cost of Context-Switching Between Side Projects (And the Workflow That Ended It) The expensive part of running several side projects is not…

productivitywebdevsideprojectscareer
Dev.to Jun 17, 2026, 00:04 UTC
EN

How I Build Production AI Apps on Cloudflare with Claude Code

AI makes it trivial to generate a working demo. Making something that survives real traffic is a different skill. Here's how I approach it — the princ…

aiwebdevprogramming
Dev.to Jun 17, 2026, 00:03 UTC
EN

Product Launch Telemetry: How AIKit Turns Feature Releases Into Agent-Readable Growth Loops

Product launch telemetry is the bridge between shipping a feature and proving that the feature created growth. AIKit can turn every release into an ag…

webdevproductivitytutorial
Dev.to Jun 16, 2026, 23:04 UTC
EN

Open Graph Image Sizes and Dimensions: The Complete 2026 Guide

When you paste a link into Slack, X, or iMessage and it unfurls into a rich card with a big image, that image comes from your page's Open Graph tags. …

webdevjavascriptseohtml
Dev.to Jun 16, 2026, 22:19 UTC
EN

The UX Challenge of AI: Training Users to Build a Secure Facial Vault

When you build an app, you know exactly how the backend works. But the moment real users hit the frontend, they will do the exact opposite of what you…

uxwebdevaistartup
Dev.to Jun 16, 2026, 22:09 UTC
EN

How to E2E Test SendPigeon Email Workflows in Playwright

When you integrate SendPigeon into your app, you get three stages of email testing. Each stage solves a different problem. This guide walks through al…

playwrighttestingjavascriptwebdev
Dev.to Jun 16, 2026, 22:04 UTC
EN

25. Build Your Own API

BootCamp by Dr.Angela 1. Building Your Own APIs You can build your own APIs using frameworks like Node.js + Express. API Platforms RapidAPI : Marketpl…

webdevprogrammingbeginnersfullstack
Dev.to Jun 16, 2026, 21:33 UTC
EN

Why PDF generation breaks in production (and why localhost lies)

PDF generation is one of those things that works perfectly… until real users touch it. On localhost: npm run dev Open Chrome → print → PDF. Done. Then…

webdevjavascriptbackendsass
Dev.to Jun 16, 2026, 20:44 UTC
EN

Notion AI's Pricing Trap: Why I Went Open Source Instead

Notion AI's Pricing Trap: Why I Went Open Source Instead I still remember the day my colleague slid a Notion AI invoice across my desk. The number mad…

machinelearningprogrammingtutorialwebdev
Dev.to Jun 16, 2026, 20:21 UTC
EN

Airtable AI From Scratch: A Freelance Dev's Cost Breakdown

Airtable AI From Scratch: A Freelance Dev's Cost Breakdown I run a one-person shop. No co-founders, no VC money, no "growth team." Just me, my laptop,…

tutorialprogrammingapiwebdev
Dev.to Jun 16, 2026, 19:35 UTC
EN

Stop letting the prompt be your state machine

Stop letting the prompt be your state machine You shipped an LLM feature six months ago. Now the same user input produces wildly different outputs dep…

typescriptwebdevaillm
Dev.to Jun 16, 2026, 18:34 UTC
EN

What Recruiters Can't See On My GitHub

What Recruiters Can't See On My GitHub If you spend about 30 seconds looking at my GitHub profile, you might think I'm all over the place. React. Pyth…

githubcareerwebdevautomation
Dev.to Jun 16, 2026, 18:34 UTC
EN

Stop refunding payments you should never have charged

I once shipped a checkout that charged the card the instant the customer hit pay, then ran the order validation afterward. Stock check, address valida…

stripewebdevjavascriptarchitecture
Dev.to Jun 16, 2026, 18:33 UTC

© Tech News — Headline Aggregator

Sitemap Legal Notice Privacy Terms Copyright / Removal DSA Contact

Leaving the site

You are about to open an external website:

Continue →