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

11,842 articles
Frontend — CSS Color Functions

CSS Color Functions

CSS has a number of functions that can be used to set, translate, and manipulate colors. Learn what they are and how they are used with a bunch of examples to get you started.

SFSunkanmi FafoworaSunkanmi Fafowora·June 19, 2025Frontend
Engineering — The DeepSeek Series: A Technical Overview

The DeepSeek Series: A Technical Overview

The appearance of DeepSeek Large-Language Models has caused a lot of discussion and angst since their latest versions appeared at the beginning of 2025. But much of the value of DeepSeek's work comes from the papers they have published over the last year. This article provides an overview of these papers, highlighting three main arcs in this research: a focus on improving cost and memory efficienc

SMShayan Mohanty·June 18, 2025Engineering
AI & ML — Introducing Roast: Structured AI workflows made easy (2025) - Shopify

Introducing Roast: Structured AI workflows made easy (2025) - Shopify

Roast is a convention-oriented workflow orchestration framework designed specifically for creating structured AI workflows that interleave AI prompting with normal non-AI execution. It provides a declarative approach primarily using YAML configuration and markdown prompts, giving AI agents the guardrails they need to solve developer productivity problems at scale.

SEShopify Engineering·June 18, 2025AI & ML
Frontend — How to Keep Up With New CSS Features

How to Keep Up With New CSS Features

How do you stay informed of new CSS features when the language evolves quickly and information is spread all around the web? Sacha Greif has some tips from his work running an annual survey focused on new CSS features.

SGSacha GreifSacha Greif·June 17, 2025Frontend
Design & UX — Welcoming Payload to the Figma team

Welcoming Payload to the Figma team

We're thrilled to announce that the team behind Payload, a leading open-source headless content management system (CMS) and application framework, has joined Figma.

KRKris Rasmussen·June 17, 2025Design & UX
Performance — A Better API for the Resize Observer

A Better API for the Resize Observer

ResizeObserver, MutationObserver, and IntersectionObserver enhance performance over their predecessors. Zell discusses their API similarities, usage steps, refactoring strategies, and advantages with practical examples.

ZLZell LiewZell Liew·June 16, 2025Performance
Engineering — Highlights from Git 2.50

Highlights from Git 2.50

The open source Git project just released Git 2.50. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.

TBTaylor BlauTaylor Blau·June 16, 2025Engineering
AI & ML — Cloudflare service outage June 12, 2025

Cloudflare service outage June 12, 2025

Today, June 12, 2025, Cloudflare suffered a significant service outage that affected a large set of our critical services, including Workers KV, WARP, Access, Gateway, Images, Stream, Workers AI, Turnstile and Challenges, AutoRAG, and parts of the Cloudflare Dashboard.

JHJeremy Hartman, Cj DesaiJeremy Hartman, Cj Desai·June 12, 2025AI & ML
Engineering — Celebrating 11 years of Project Galileo’s global impact

Celebrating 11 years of Project Galileo’s global impact

June 2025 marks the 11th anniversary of Project Galileo, Cloudflare’s effort to protect vulnerable public interest organizations from cyber threats. To celebrate, we’re sharing a new Radar report, expanding in Asia with two new partners, and highlighting stories from organizations on the front lines.

JJocelynJocelyn·June 12, 2025Engineering
Frontend — Breaking Boundaries: Building a Tangram Puzzle With (S)CSS

Breaking Boundaries: Building a Tangram Puzzle With (S)CSS

We put it to the test and it turns out Sass can replace JavaScript, at least when it comes to low-level logic and puzzle behavior. With nothing but maps, mixins, functions, and a whole lot of math, we managed to bring our Tangram puzzle to life, no JavaScript required.

SSSladjana StojanovicSladjana Stojanovic·June 12, 2025Frontend