Save the date, mark your calendars, and decline the invite to the All Hands meeting! The second edition of @sfrubyconf is happening Nov 10-12. Our first confirmed keynote speaker is @garrytan, president and CEO of Y Combinator and longtime Rails builder. Ruby on Rails is the common ingredient in success stories like Shopify and GitHub. Last year, we brought together the people building with Rails and the companies shaping its future. This year, we're doing it again in the home to some of Rails' biggest wins. Be the first to know when tickets go live and get early-bird prices: sfruby.com/conference-2026/

We at @evilmartians recently got a request from a client: “Make my devtool landing page look like it’s 2026, not 2016” So I revisited the examples I analyzed a year ago (evilmartians.com/chronicles/…) to see what’s new on the scene. And there’s quite a bit 👇

Making your own portfolio is hell, took me a full month 🥲 Anyway, pretty proud of it! evilmartians.com/martians/ar…

Five years ago, we posted an article on writing custom RuboCop rules (called "cops"). Since then, RuboCop had a major release with new features that make your custom rules way better. This article by @viralpraxis revisits our previous post and explains how to write custom cops today: evilmartians.com/chronicles/…

PostCSS creator, @sitnikcode, shares how to make your open source popular. He also destroys the false idea that writing open source will make you famous, or that you should write open source to show your expertise. Plus, he explains how to avoid burnout when maintaining your products. evilmartians.com/chronicles/…

Optimistic UI is a lie. And the modern web has trained everyone to expect interfaces that lie convincingly. In this new post, see how with Inertia Rails, telling that lie takes remarkably little code because of how Inertia handles state: evilmartians.com/chronicles/…

I’ve been using Sonnet 4.5 for the last months as a core coding model, but it seems ChatGPT 5.2 performs even better. Almost no loop-like errors, quick expected turnaround

a week in design looks like: mon: claude code in cursor, as weeks before tue: nothing new wed: get $250 tokens from claude code and try their research preview ui thu: install google antigravity to try out what's on friday? thanks god for design-in-code, no figma vendor lock!

I wrote this because the evals debate feels stuck in abstractions and theory. Here’s what it actually looked like inside GitHub Copilot, what worked, what didn’t, and what we learned building evals in the wild after that with @QuotientAI. Lessons learned and unrequested advice if you are building an AI product today.

Missing a right sidebar agent in @figma

Updated the iOS and it’s just disgusting. And it seems the brightness has been decreased so it feels as 60% on max. Can’t find an option to roll this crap back.

This example of our design work for @QuotientAI (the tool for AI prompt engineers) is also a study in our attention to the micro details. Even in this isolated clip, you can already spot several micro-interactions that give a design that extra UX kick!

Medium feed: almost everything is starred behind membership paywall triggering serious fomo Subscribed: suddenly only 3 out of 20 first posts are starred but now i’m wondering if the membership was even worth it