The SF Ruby Conference has run out of regular tickets, leaving late bird and corporate tickets. But it's never too late! Come meet Ruby friends, play The Pier, join small-group conversations, and explore the 2026 program in San Francisco.

Most AI SEO advice is unproven. We tested what ChatGPT, Claude, and Perplexity actually read on our own site. Six techniques that make a site agent-friendly and visible to LLMs, eight that don't, and the metrics to tell the difference.

Buildkite runs CI/CD for some of the most demanding engineering teams in the world. Why a team of opinionated developers hired Evil Martians to build a framework-agnostic design system with AI skills that guide coding agents through every component.

A tour of lemans, the open source Ruby harness behind Agents on Rails: eval task anatomy, how it runs and grades coding agents for hours, and how cheaters shaped its guardrails.

Typed-channel is a library for typed messages and requests across workers, iframes, tabs, and event buses.

Tips and tricks on writing robust evals for coding agents that test apps whose code we've never seen: different UI/UX contract strategies, UI mutation testing, browser-based E2E verification gotchas.

SF Ruby is an engineers' conference: meet the people building Ruby open source, scaling Rails in production, and shaping what agentic Rails looks like next.

MRR is easy to calculate and easy to get subtly wrong. Here's how to normalize Stripe subscriptions, classify every movement, and reconcile your number with Stripe's own charts.

PostgreSQL does not guarantee row order without ORDER BY. Use Rails 8.2 or pg_disorder to shuffle unordered SELECT results and expose hidden order dependencies, flaky tests, and application bugs. This is chaos engineering directed at your database.

AI has made implementing and enforcing design systems cheaper than ever. At the cost of speed, this falls through the cracks. But agentic development makes good design system practice non-negotiable. Implement a design system and bring consistency to an existing project.

Introducing Rails Hyperdrive: a development-only Rails engine that gives AI coding agents live answers from your booted app and lets any gem in your bundle ship guidance gated to your Gemfile. Convention over configuration, applied to agent knowledge.

Agentic speed turned all of us into super-ICs and broke our ability to collaborate. Two types of work that both produce code, and three recipes for working together again: a safe perimeter for experiments, shared rules everybody pays for, and an intent log your agents write themselves.

367 posts, four years on Gatsby, and no dedicated team: here's how we moved evilmartians.com to Astro in two weeks with an LLM.

Gusto runs payroll for 500,000+ businesses on one of the largest Rails monoliths anywhere. Why a team this strong hired Evil Martians for Sidekiq at scale, what running background jobs at that size actually takes, and when to stop waiting for the perfect hire.

Ten checks that catch what AI-written frontend code hides: contract codegen, boundary linting, mutation testing, and dead-code detectors.

Our Rails AI assistant had read-only SQL access and could still return peer review scores. Learn how we kept open-ended analytics in an in-app AI assistant while making database access honor application permissions.

Rails boot time is a DX metric in the AI age: meet require-profiler, learn to actually read sampling profilers, and see the pit stop that cut a 200-component monolith's boot by 40%.

How to publish and distribute agent skills so any AI coding agent (Claude Code, Cursor, Codex, Copilot) can find and install them: the .well-known/agent-skills/index.json discovery index, SHA-256 integrity digests, single-file vs multi-file vs bundle packaging, and every install command. Worked from the catalog we just open-sourced.

Are you treating your users fairly? They could be stuck in the queue while a greedy user monopolizes resources. And you might not even know it! In this post, you’ll see if it’s time for you to take background job prioritization seriously, and how to make it fair for all users.

Tailwind CSS has become a very popular CSS framework, and it can speed up development. But using it without proper caution can add mayhem to your code. Learn best practices to avoid getting swept away!