Martian Summer: blog, talks, open source, and ready for SFRuby in Nov

First, a reminder: we’re having the San Francisco Ruby Conference on November 19-21, 2025 in Fort Mason, San Francisco.

At SFRuby, we’re gathering ~600 Rubyists for two unforgettable days. Connect with founders, the engineers scaling the largest Ruby-powered products, and the open source authors shaping what’s next for Ruby and Rails. See demos from the fast-paced Ruby startups, take part in hands-on workshops on hot topics, and join cool conversations.

🎟️ Get your tickets!

Blog posts

• Andrey Sitnik shares open source lessons learned from creating PostCSS

• How AI can speed up design and development (based on a real project): Weeks → days: a case for expert-led, AI-driven design engineering
• AnyCable for Laravel is here (a Pusher replacement with guaranteed message delivery):
• Get a more pleasant UI at the Hotwire-Rails summit (or interactive multi-step forms at peak UX)

• Read how we cloned Bolt’s CEO for the biggest hackathon in history
• And how we built sfruby.com with Bolt.new. (By the way, join us and go buy your ticket at sfruby.com!)

• See how frontend developers can survive in a world of API contracts and read API contracts and everything I wish I knew: a frontend survival guide
• Here’s how Inertia.js helps build modern JS components for Rails without SPA complexity
• As an example, learn how we built an open source CFP management app with Rails + Inertia.js
• A deep look at circuit breakers for Ruby (prevent cascading failures)
• We studied 100 dev tool landing pages and here’s what really works in 2025

• Check out this guide on building a JetBrains plugin for IntelliJ IDEA (example: Luau support)
• Irina Nazarova writes why Rails survived the hype cycle and what that means for startups
• Keep your business logic in Ruby, but upgrade your tools with Go, C, Rust (and so on)
• The early validation lesson: designing Quotient’s prompt sandbox
• How we cut Whop’s Rails test suite and CI time in half

Dev Propulsion Labs Podcast

Dev Propulsion Labs is our podcast about building successful developer tool companies where prominent dev tools founders share industry knowledge.

• Adam Wenchel, CEO of Arthur AI on solving the “last mile” problem in AI deployment via open source guardrails, and why enterprise experience builds better developer empathy. Episode
• José Valim, creator of Elixir, shares how his desire to learn pushed him to create effecient developer tools, why autonomy is a sign of a healthy developer ecosystem, and what the future of AI looks like. Episode

• Jason Bosco, co-founder and CEO of Typesense on serving billions of searches monthly without VC funding. Episode
• Adam Frankl, author, founder, and advisor on choosing problem over product and building developer empathy. Episode

• Sarah Wooders, co-founder and CTO of Letta on why LLMs are like Memento and what conversational memory means for agent design. Episode
• Michael Magán, co-founder and CEO of tambo ai on why it’s time to build user-centric developer tools. Episode
• Anna Veronika Dorogush, founder of Recraft on leading a small AI team that competes with Midjourney. Episode

Talks and meetups

Martians countine to touch down all over the world, including 3 talks at the last RailsConf ever:

• Nina Torgunakova shared how to achieve simplicity in state management with Nano Stores.
• Irina Nazarova shared how Rails continues to power successful startups and what its enduring appeal means for founders today and tomorrow.

• Andrey Sitnik advocated for Privacy-first and Local-first architectures at React Norway and in Barcelona.
• Andrey Novikov demystified running Ruby in Kubernetes, showing how subtle configuration issues can make or break performance.
• Sampo Kuokkanen explained what’s happening with frozen and “chilled” strings in Ruby 3.4.
• Svyatoslav Kryukov traced Rails’ frontend evolution from MVC and Asset Pipeline to Hotwire and Inertia.js, revealing why Rails’ “retreat” was actually a setup for its comeback.

• Irina Nazarova reflected on the craft of consulting and what it reveals about collaboration, learning, and human connection.
• Alexander Baygeldin showed how to make background job prioritization fair for all users.
• Julia Egorova explored the chaos of multithreaded testing and shared tools and tips for taming it.
• Albert Pazderin explored the future of Rails in the browser, showing how WebAssembly is redefining what’s possible for Ruby on Rails.

Plus, we organized SFRuby meetups in June at PlanetScale, July at Figma, and August at GitHub HQ with speakers like Drew Hoskins (Temporal), Enrique Mogollán (Handshake), Sergey Karayev (Superconductor), and many more.

Open source and more

• Martian Grotesk our variable web font is now fully open source!
• Check out LaunchKit, our free landing-page template for commercial OSS and dev-tool projects.
• Say hello to Redprints CFP, an open source CFP management app.
• Agent Prism is now in alpha: get React components for visualizing traces from AI agents. Display LLM calls, tool executions, and agent workflows in a hierarchical timeline.
  And a lot more updates, follow us on GitHub!