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Agents of Concurrency

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About this event

What to expect

Explore production-tested Rails concurrency and AI agent delivery at this Ruby Ireland meetup in Dublin on 10 September 2026.

Hosted and sponsored by Fin, Agents of Concurrency brings together two technical talks focused on the realities of running Rails applications efficiently and shipping AI agents at speed. Rather than staying at the level of theory, both sessions draw on practical engineering experience from production systems.

The meetup takes place at Intercom, 124 St Stephen’s Green, Dublin 2. Doors open at 6:30pm, with pizza available immediately, and the talks begin at 7pm. The event finishes at 8:30pm IST. Food and drinks are provided thanks to Fin’s sponsorship.

Talks and speakers

Multiprocessing Is The Most Efficient Way To Serve Rails Apps

Rails developers can choose between threads, fibers, forking and other approaches to concurrency,but deciding which model best fits a real Rails workload remains a long-running debate. Jean Boussier will make the case for multiprocessing, explain why it works particularly well for Rails applications, and examine the gains and trade-offs involved when choosing it over the alternatives.

Jean is a Senior Principal Engineer at Fin, a member of Rails Core and a Ruby committer, bringing deep knowledge of both the framework and its underlying runtime.

Ship Ship Ship: Putting Agents on Rails

Building an AI agent is one challenge; repeatedly shipping reliable agents inside an established Rails codebase is another. Ryan Sherlock will discuss what it takes to move from experimentation to delivery without the system falling over. Expect a candid look at the patterns that proved effective, the approaches that did not hold up and the lessons Fin learned while running agent-based software in practice.

Ryan is Senior Director of Engineering at Fin and will focus on maintaining delivery speed while integrating AI agents into real Rails systems.

Who should attend?

This in-person meetup is particularly relevant to:

  • Ruby and Ruby on Rails developers
  • Software engineers working on application performance or concurrency
  • Engineering leaders introducing AI agents into existing products
  • Developers interested in production AI, automation and scalable delivery
  • Members of the local Ruby community who want practical insight and peer conversation…

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