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

Learn more about how Vercel's latest feature will give access to usage information so your Team can optimize your builds.

Let’s talk shadows in web design. Shadows add texture, perspective, and emphasize the dimensions of objects. In web design, using light and shadow can add

The z-index property can be a tricky little bugger. Sometimes, no matter how much you crank up the number, the element never rises to the top! In this article, we explore stacking contexts, and see how they can thwart our efforts to use z-index. We'll also learn how to use this mechanism to our advantage.

We will be hosting a talk about our work on Scaling a Distributed Priority Queue during our virtual Systems @Scale event at 11 am PT on Wednesday, February 24, followed by a live Q&A session. Please submit any questions to [email protected] before the event. The entire Facebook ecosystem is powered by thousands of distributed systems […]


At Shopify, we’ve long used database replication for redundancy and failure recovery, but only fairly recently started to explore the potential of replicas as an alternative read-only data source for applications.

As digital practitioners, GDPR has impacted every facet of our professional and personal lives. Whether you’re addicted to Instagram, message your family on WhatsApp, buy products from Etsy or Google information, no one has escaped the rules that were introduced in 2018.

Allowing users to securely log parts of the request that match firewall rules while making it impossible for anyone else to decrypt.

On a default left-to-right web page, "hanging" an element off the right side of the page (e.g. position: absolute; right: -100px;) triggers a horizontal

Blobs are the smooth, random, jelly-like shapes that have a whimsical quality and are just plain fun. They can be used as illustration elements and background

This year we hosted our first all-virtual GitHub Universe—and you tuned in to join us from 174 regions around the world! We knew there was even more to cover, so…

Students crave hands-on experience, and companies look for developers who can contribute to existing projects. As the home to the world’s largest community of developers, we have the great responsibility…

This is a guest post by Paddy Byers, Co-founder and CTO at Ably, a realtime data delivery platform. You can view the original article on Ably's blog. Users need to know that they can depend on the service that is provided to them. In practice, because from time to time individual elements will inevitably fail, this means you have to be able to continue in spite of those failures. In this article,


As developers, we’re constantly learning new languages and frameworks. But how can you structure this learning to ensure maximum benefit while still progressing? Here’s how you can devise your own curriculum to keep moving in the right direction. The following are simply steps that worked for Kirsty Simmonds when she needed to learn over time, without burning out or placing undue pressure on mysel

Announcing a fundamental improvement to Argo Tiered Cache we’re calling Smart Tiered Cache Topology. When enabled, Argo Tiered Cache will now dynamically select the single best upper tier for each of your website’s origins while providing tiered cache analytics.

I’ve been a manager for many years at companies of different scale. Through these experiences, I’ve done my share of learning, and made some mistakes along

Zach takes a look at some fundamental HTML+CSS usage for fluid, responsive images. Most of it, I'd say, is what you'd expect, but things get weird when srcset

HTML has a built-in native audio player interface that we get simply using the <audio> element. Point it to a sound file and that’s all there is to it.

The PostgreSQL query planner doesn't know which data usually correlates. How to use CREATE STATISTICS to find correlations.

Make a human readable list from an array in JavaScript.

We take developer productivity pretty seriously at Slack. It’s multi-faceted, spreading across build speed, reliability, modernity, and more. One thing we really pride ourselves in is using the latest build tools when possible. Not necessarily bleeding edge (alphas, betas, RC, etc.), but the latest stable versions. Aside from the new features and improvements they bring,…

In this article, we take a look at the topic of context and variables in Hugo, a popular static site generator. You’ll understand concepts such as the global context, flow control, and variables in Hugo templates, as well as data flow from content files through templates to partials and base templates.

I like Andy's idea here: