Real-time LLM streaming sounds simple—until it isn’t. A Rails-focused look at hidden pitfalls, AnyCable’s fixes, and the future of durable streams.

After seeing dozens of vibe-coded projects up close, it's clear the gap between a prototype and product ready for users is wider than most expect. Eventually, progress becomes impossible without an experienced developer. We explore why that is, and I share a real-world case study to illustrate.

Here's why we scaled up our San Francisco Ruby meetups to SF Ruby Conf with 400+ Ruby engineers for three days of technical talks and startup demos.

We've experimented putting the essence of a Martian engineer into AGENTS.md. Learn the story, then try it on your next AI-assisted project!

A deep dive into Ruby parsing and unparsing, the transition from the Parser gem to Prism for Ruby 3.4 support, and how tooling adapts to evolving AST formats using Unparser as a case study.

Tools like Bolt, Dazl, and Lovable are leading the charge with AI coding tools. But there are design patterns that can improve vibecoding workflows even more, reducing friction, and elevating AI tool UX into intuitive, creator-friendly experiences that appeal to users on a massive scale.

Learn how to optimize payment forms with frontend techniques to reduce abandonment and increase conversion rates. From performance optimization to UX design, discover actionable strategies that can boost conversion by up to 35%.

React dominates with 88.6% of startup funding, but 85% of these projects are dead. We analyze funding patterns, GitHub activity, and ecosystem health across React, Vue, Angular, and Svelte.

How we helped Whop migrate their high-traffic Rails app from PostgreSQL to PlanetScale MySQL without downtime or development pauses. Read about dual-database setups, schema quirks, and the lessons learned.

SF Ruby and Evil Martians are excited to invite you to our premier event: the San Francisco Ruby Conference.

Debugging AI agents shouldn’t mean digging through endless JSON. AgentPrism, an open-source React component library by Evil Martians, turns raw OpenTelemetry traces into clear visualizations, instantly revealing loops, errors, and cost spikes. Built with Quotient AI, AgentPrism helps teams ship reliable, production-grade AI systems up to 5x faster.

Join me on a breathtaking journey as we add a client-side search to an SSG docs-first site, built with Astro!

Open source, talks around the world and prepping SFRuby for Nov 2025. Catch up Evil Martians' blog, open source, podcast, and get ready as we head for SFRuby Conference in San Francisco.

Learn how to build a dedicated API documentation repository that becomes your team's single source of truth, enabling true contract-first development.

Read how to accurately detect Safari and iOS versions using WebKit feature checks, behavioral tests, and selective UA hints to gate features safely and avoid breaking UX.

Flaky tests got you down? The Evil Martians formula stops chronic CI retry irritation! Clinically proven on ClickFunnels' massive test suite and dozens of developers!

CSS Color Module 4 adds oklch(), and we gain P3 wide-gamut support, boost code readability, and improve developer-designer communication.

Scale your Rails app without rewrites. Learn to keep business logic in Ruby and delegate heavy work to specialized tools, built with Go, C, and Rust, for performance and scalability.

Explore how the Active Agent library brings Rails conventions to AI development, with real-world examples from Evil Martians' early adoption experience

Evil Martians cut Whop’s Rails test suite and CI time in half using profiling, factory optimizations, and parallelization. Learn how we speed up tests and boost reliability.