Skip to content
⚡ LIVE From Lizard to Wizard · Wednesday, August 5 · LIMITED SEATS Save my seat →
Episode 11 70 minutes

Rails at Scale – With Adrian Marin

Key Takeaways from our conversation with Adrian Marin

Adrian Marin

Founder of AVO and Host of FriendlyRB

In this episode of Señors @ Scale, host Neciu Dan chats with Adrian Marin — founder of AVO and host of FriendlyRB — about Rails productivity, the magic of Ruby, and how the community continues to evolve through creativity and connection.

Main Takeaways from my conversation with Adrian:

💻 Rails is still absurdly productive.
Adrian once built a full startup app on a 10-hour flight with no internet. Rails’ scaffolding and conventions make it possible to ship at lightning speed.

🧠 Ruby’s elegance wins.
Everything in Ruby is an object — even nil. Its syntax is lightweight, expressive, and lets you focus on logic, not ceremony.

⚙️ Hotwire is Rails’ modern superpower.
Forget JSON APIs. Hotwire ships HTML directly from the server and lets you build dynamic UIs with minimal JavaScript.

🛠 AVO was born from real pain.
After years of building admin panels by hand, Adrian built AVO to give the Rails world a polished, Nova-style toolkit for internal apps.

🌍 Community keeps Ruby alive.
Through FriendlyRB, Adrian built a new kind of conference — dancers on stage, walking tours, and even a “Ruby Passport” that stamps every event you attend.

📚 Recommended Reads:

  • Your Music and People by Derek Sivers

🎬 Also in this episode:

  • The rise of Tailwind CSS and why it fits so well with Rails
  • How AI and LLMs are now excellent at writing Rails code
  • The culture of open source at Basecamp and within the Ruby ecosystem

Episode Length: 70 minutes of Rails stories, developer insights, and community lessons.

🏆 SOLD OUT IN SINGAPORE · ATHENS · LONDON

From Lizard to Wizard

4-hour remote system design intensive.
Chat apps, microfrontends, BFF, SDUI, event-driven, observability.

€299 4-HOUR INTENSIVE
Save your seat →

Spots are vanishing. Don't be the one who waited.

💡 More Recent Takeaways

Monorepos at Scale with Santosh Yadav
Episode 40

Señors @ Scale host Neciu Dan sits down with Santosh Yadav, principal developer advocate at CodeRabbit and one of only around 80 GitHub Stars in the world. Santosh started hating C in 2004, fell for C# by 2008, and turned a year of open source contributions to Angular and NgRx into a stack of community titles — Google Developer Expert, GitHub Star, Nx champion, and Microsoft MVP. As a staff engineer at Celonis he led the move of 20-plus apps to module federation and drove Nx adoption across 30-plus teams when the product grew from four apps to thirty. From the year-long incremental migration off a single deployable unit, to why polyrepos can't give AI tools the context they need, to how Nx's affected graph and build caching tame a 20-million-line monorepo, to running code review for free for open source at CodeRabbit, this is the monorepo conversation grounded in someone who actually shipped one at scale.

Routing at Scale with Nicolas Beaussart-Hatchuel
Episode 39

Señors @ Scale host Dan Neciu sits down with Nicolas Beaussart-Hatchuel, staff engineer at Payfit and one of the maintainers of TanStack Router. Nicolas's path started with C macros to auto-generate his student paper headers and frontend learned by building phishing login pages for practice, took him through an iframe-based AngularJS-to-Angular 2 micro frontend migration at a web radio platform, into open source contributions across NX, ESLint, Vite and Hasura, and finally to maintaining one of the most ambitious routers in the React ecosystem. From why TanStack Router exists, to migrating Payfit's 300-route, 1.5-million-line codebase off React Router v5 using the strangler pattern, to collapsing 25 polyrepos and five different micro frontend strategies into a single modular monolith, this is the routing conversation most engineers never get.

Redux at Scale with Mark Erikson
Episode 38

Señors @ Scale host Neciu Dan sits down with Mark Erikson, maintainer of Redux and senior front-end engineer at Replay.io, where he works on a time-traveling debugger. Mark's path started with a 286 he got at eight years old, ran through a computer science degree, four years teaching English in China, embedded software at Northrop Grumman emulating legacy CPUs in old aircraft, and a chain of projects — GWT, jQuery, Backbone — that led him to React and Redux. From the @deprecated backlash that had people insulting him on the internet, to why the Redux core hasn't meaningfully changed since 2016, to what RTK Query actually solves, the underused listener middleware, building source maps into React's own build pipeline, and how Replay's recordings now hand debugging over to AI agents — this is the Redux conversation grounded in two decades of shipping software.

TanStack Query at Scale with Dominik Dorfmeister
Episode 37

Señors @ Scale host Dan Neciu sits down with Dominik Dorfmeister — better known as TkDodo — the maintainer of TanStack Query and a software engineer at Sentry. Dominik's path started at a technical high school in Vienna, ran through JVM backend work in Java and Scala, and turned to frontend around the introduction of TypeScript. During the pandemic lockdowns in Austria he started answering questions in the TanStack Discord, got addicted to the instant gratification of helping people, and slowly turned that into a blog, a first code contribution six to eight months later, and eventually maintainership of TanStack Query. From tracked queries and the chaotic version-three-to-four rename, to the version-five mistake he still dreads, to ripping 28,000 lines of dead code out of Sentry with Knip and building Sentry's new design system, this is the open source maintenance conversation most developers never get to hear.

📻 Never Miss New Takeaways

Get notified when new episodes drop. Join our community of senior developers learning from real scaling stories.

💬 Share These Takeaways

Share:

Want More Insights Like This?

Subscribe to Señors @ Scale and never miss conversations with senior engineers sharing their scaling stories.