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

11,657 articles
Performance — Build better software to build software better

Build better software to build software better

We manage the build pipeline that delivers Quip and Slack Canvas’s backend. A year ago, we were chasing exciting ideas to help engineers ship better code, faster. But we had one huge problem: builds took 60 minutes. With a build that slow, the whole pipeline gets less agile, and feedback doesn’t come to engineers until…

DRDavid Reed·November 6, 2025Performance
AI & ML — How AI Gateway runs on Fluid compute

How AI Gateway runs on Fluid compute

The AI Gateway is a simple application deployed on Vercel, but it achieves scale, efficiency, and resilience by running on Fluid compute and leveraging Vercel’s global infrastructure.

VVercel·November 6, 2025AI & ML
Design & UX — Six Key Components of UX Strategy — Smashing Magazine

Six Key Components of UX Strategy — Smashing Magazine

Let’s dive into the building blocks of UX strategy and see how it speaks the language of product and business strategy to create user value while achieving company goals. Part of the Measure UX & Design Impact (use the code 🎟 IMPACT to save 20% off today).

VFVitaly FriedmanVitaly Friedman·November 5, 2025Design & UX
Engineering — The Learning Loop and LLMs

The Learning Loop and LLMs

LLMs are useful because they lower the threshold for experimentation. But we have to beware that we don't use them to try to shortcut the learning loop that's an essential part of a software developer's practice. We have seen this problem with tools like low-code platforms, they provide a rapid burst of initial development, but we cannot sustain them because they undermine the learning required fo

UJUnmesh Joshi·November 4, 2025Engineering
AI & ML — Video Invisible Watermarking at Scale

Video Invisible Watermarking at Scale

At Meta, we use invisible watermarking for a variety of content provenance use cases on our platforms. Invisible watermarking serves a number of use cases, including detecting AI-generated videos, verifying who posted a video first, and identifying the source and tools used to create a video. We’re sharing how we overcame the challenges of scaling […]

CWChris Wiltz·November 4, 2025AI & ML
Frontend — How To Leverage Component Variants In Penpot — Smashing Magazine

How To Leverage Component Variants In Penpot — Smashing Magazine

With component variants, design systems become more flexible, letting you reuse the same component while adapting its look or state with ease. In this article, Daniel Schwarz demonstrates how design tokens can be leveraged to manage components and their variations using Penpot, the open-source tool built for scalable, consistent design.

DSDaniel SchwarzDaniel Schwarz·November 4, 2025Frontend
Engineering — Building for the next wave of app monetization

Building for the next wave of app monetization

Last week, Google announced that Android apps selling digital goods to US customers can now process in-app payments using third-party payment providers. Here’s a closer look at our solutions for app developers.

TFTim FisherTim Fisher·November 4, 2025Engineering
Languages — Engineering a Rust optimization quiz

Engineering a Rust optimization quiz

There are several Rust quizzes online, including one that’s literally called the “Unfair Rust Quiz” at https://this.quiz.is.fckn.gay/ , but when I was given the opportunity to record an episode of the Self-Directed Research podcast live on the main stage of EuroRust 2025 , I thought I’d come up with something special. The unfair rust quiz really deserves its name. It is best passed with a knowledg

AWAmos WengerAmos Wenger·November 1, 2025Languages
Engineering — GitHub Game Off 2025 theme announcement

GitHub Game Off 2025 theme announcement

GitHub’s annual month-long game jam is back for its 13th year! This November, make a game inspired by the theme WAVES—literal, digital, or emotional. 👋🏻 🌊 📡

LRLee ReillyLee Reilly·November 1, 2025Engineering
Engineering — Shuffle: Making Random Feel More Human

Shuffle: Making Random Feel More Human

Shuffle has always been one of Spotify’s most-used features, and also one of the most misunderstood. For years, listeners have debated whether Shuffle is “truly random,” often noticing patterns or repeated tracks that didn’t feel random enough.

LBLudvig Borgne and Chidem Sahiner·November 1, 2025Engineering
Networking — BGP zombies and excessive path hunting

BGP zombies and excessive path hunting

A BGP “zombie” is essentially a route that has become stuck in the Default-Free Zone (DFZ) of the Internet, potentially due to a missed or lost prefix withdrawal. We’ll walk through some situations where BGP zombies are more likely to rise from the dead and wreak havoc.

CCloudflare·October 31, 2025Networking