Will Ruby app servers break on macOS High Sierra?

Ruby, Puma, Unicorn and Passenger don't have any direct dependencies on Apple's Objective-C libraries. But one of the gems you use may have such a dependency, either directly or indirectly.

Documenting the Web together - Microsoft Edge

Microsoft is committing resources towards making MDN Web Docs the best place to go for web API reference. 
The first step: redirecting over 7,700 MSDN pages to corresponding topics in the MDN web docs library powered by Mozilla.

Rebuilding slack.com

A redesign powered by CSS Grid and optimized for performance and accessibility.

As in, someone used CSS Grid and wrote about the actual use case!

SaaS Email Templates

Responsive HTML email templates for SaaS startups. 

Chart Design Automatization – Design + Sketch

Data visualization tricks and tips for the Sketch app.

Stark: a colorblind simulator and contrast checker for Sketch

This helps designers start thinking about and executing on designing with accessibility in mind from the very beginning of the product building process.
All based on WCAG 2.0 standards.

Is this my interface or yours?

A piece about perspective: why is it "My Computer" and "My Drive" and "Your Files" and... well, you get it.

A Guide to SaaS Customer Onboarding

What's so critical about customer onboarding, and what elements do you really need to get right?

What it's like to use the Headspace meditation app

A complete walkthrough of why this author decided he needed to be the obnoxious guy who tells everyone he meditates every day. 

How Our One Week Sprints Are Like Blazing a Trail

We run one week sprints at Revelry. Josh decided there was an epiphany to be had in the phrase "there's a difference between mile markers and trail markers."

So, why did he say that?

Principles for Quick and Ugly Back-Office Application Design

Joel lead a team of Revelry volunteers who scrambled to launch a quick prototype for the Cajun Airlift disaster relief squad.

And he realized... Process is a good thing. 

Using @each Loops to Style Alert Boxes

Brittany wants you to keep your code DRY while still figuring out a way to create different variants of a component.

Enter @each loops.