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Engineering Insights & Guides

The best problem-solving writing in software engineering — databases, performance, security, frontend and distributed systems, in one feed.

11,839 articles
Security — How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees

How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees

WhatsApp is committed to helping people stay safe while protecting the privacy of their messages. As scam tactics evolve — from impersonation to social engineering to AI-generated lures — we’re always evolving as well, so that our protections stay ahead of scammers while protecting people’s personal messages with end-to-end encryption. Today, we’re sharing an early […]

CWChris Wiltz·August 12, 2026Security
AI & ML — Building a software factory for AI SDK

Building a software factory for AI SDK

We built a software factory that autonomously processes issues and PRs for the AI SDK, with humans in control of every merge. Four weeks in, it authors 25-40% of merged PRs.

VVercel·August 12, 2026AI & ML
Frontend — Building Tactile UX: Honoring Intentional Design With Lottie — Smashing Magazine

Building Tactile UX: Honoring Intentional Design With Lottie — Smashing Magazine

When tasked with building a highly interactive, tactile web experience, the architecture must serve the art direction. In this article, Alexey Kopytin explains their architectural rationale for building a digital stress-relief squeeze toy game using Lottie animations, DOM events, and distance-based math to maintain absolute control over their designers’ intentional motion.

AKAlexey KopytinAlexey Kopytin·August 11, 2026Frontend
AI & ML — Mapping the AI economy

Mapping the AI economy

AI companies are undergoing rapid global expansion while achieving unprecedented rates of growth. We analyzed Stripe data to understand where global demand is the strongest, and how companies can build to best capture that demand.

ATAbhi TiwariAbhi Tiwari·August 11, 2026AI & ML
Engineering — Everything hackable will get hacked

Everything hackable will get hacked

Open-weight models that allow perform offensive research present an emerging cybersecurity challenge. But you do not need to wait for specialized models to begin defensive cybersecurity work.

VVercel·August 11, 2026Engineering
Frontend — Animating CSS border-image

Animating CSS border-image

Border images are an overlooked feature. One neat fact is that border image slices can run across entire borders on an element, and animating it creates beautiful effects. Animating CSS border-image originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

PPreethiPreethi·August 10, 2026Frontend
Frontend — SmashingConf Freiburg 2026, September 7-10

SmashingConf Freiburg 2026, September 7-10

Smashing Magazine’s in-person conferences are back and returning to the wonderful city of Freiburg next month, September 7–10. SmashingConf Freiburg 2026, September 7-10 originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

GGGeoff GrahamGeoff Graham·August 10, 2026Frontend
Engineering — Unveiling good and bad behaviors on the Agentic Internet

Unveiling good and bad behaviors on the Agentic Internet

Cloudflare is shifting bot mitigation from point-in-time Risk assessment to continuous Trust evaluation. Learn how new good and bad behaviors from bots and agents are assessed by our systems, including BotBase and Precursor — and try out our Precursor Trace simulation to see how your own cursor movements would be assessed as human or bot.

JHJin Hee Lee, Marina ElmoreJin Hee Lee, Marina Elmore·August 7, 2026Engineering
AI & ML — Unifying Workers AI and AI Gateway into a single AI control plane

Unifying Workers AI and AI Gateway into a single AI control plane

Cloudflare is unifying AI Gateway and Workers AI into a single control plane, giving developers observability, billing, and dynamic routing across both managed GPUs and external providers. Learn how unified bindings and model-first routing simplify building resilient AI applications.

MMMichelle, Ming LuMichelle, Ming Lu·August 7, 2026AI & ML