We are a Ruby Meetup group and hold twice a month meetups in Boulder, Colorado.

On the second Wednesday of each month we hold Presentation Night.

Coding Night is held the fourth Thursday of every month.

Join Us!

Presentation Night Meetup Videos

November 2023

Enhancing LLMs with Retrieval Augmented Generation | Full Talk

By Andrei Bondarev of Langchain.rb


October 2023

September 2023

Generative AI and the Future of Programming for Rubyists | Full Talk

By Scott Werner from Sublayer

July 2023

Let's Learn More About Turbo by Deconstructing My Help Desk-Like Rails App | Full Talk

By Andy Peters from Doorkeep

May 2023

Applying SRE Principles to CI/CD | Full Talk

By Mel Kaulfuss from Buildkite

April 2023

How I commit, with Lazygit | Lightning Talk

By Ryan Stemmle from SOFware

Introducing Bridgetown | Full Talk

By Jeremy Hinegardner of Dojo4

March 2023

Composing a Flexible Dev Environment with Docker Compose Full Talk

By Spike Ilacqua from Praecipio Consulting

Composing Micro-Frontends w/ Rails & (JS) Friends | Lightning Talk

By Tim Tyrell from Brandfolder

February 2023

Hotwiring reCAPTCHA | Lightning Talk

By Ben Randolph from Ownify

Ruby Function Composition | Full Talk

By Brooke Kuhlmann of Alchemists

January 2023

The devise_saml_authenticable gem | Lightning Talk

By Rylan Bowers from Benefix

November 2022

Panel on Ruby, Rails and Web development job market and career advice. | Full Talk / Panel


  • Robyn Purvin, Partnership Manager at Turing
  • Kyle Lamy, VP of Engineering at Maxwell
  • Jerry Ramey, Mobilize CTO and co-founder
  • Marty Haught, Director of Engineering at Hashicorp

October 2022

BulmaFormRails Gem: Easy Pretty Forms For Non-Designers | Lightning Talk

By Kevin Weller from Modern GeoSystems

Sauté until cooked through: Infrastructure as Code using Chef and RubyLightning Talk

By John Best

March 2022

How we made our Ruby App Concurrent Golang Style! | Full Talk

By Sudhindra Rao from JFrog

February 2022

You light up my life: How quantum physicists are leveraging light to break through to the next level of quantum computing | Lightning Talk

By Akira Brand

Breaking up the bundle | Full Talk

By Joel Hawksley of Github

January 2022

The Yield Keyword in Ruby | Lightning Talk

By Antonio King

OpenTelemetry for Rubyists | Full Talk

By Francis Wang of NYC.rb

March 2021

From ruby-ist to javascripter: A self-taught journey | Lightning Talk

By Akira Brand from Emeritus Education

Ruby Pattern Matching | Full Talk

By Brooke Kuhlmann of the Alchemists

February 2021

GitHub Buddy | Lightning Talk

By Taylor Phillips

Crystal for Rubyists | Full Talk

By Kirk Haines

January 2021

A Certain Swagger | Lightning Talk

By Zeke Clark

View Components In The Wild | Full Talk

By Joel Hawksley from Github

November 2020

Learning to Love Writing Tests | Lightning Talk

By Sienna Kopf from Turing

Rails!? Still!? | Full Talk

By PJ Hagerty from DevRelate.io

October 2020

Hacking Stacks | Lightning Talk

By Tim Kleier from ASRC Federal

Modern interviewing panel | Full Talk

By Paul Christopher / Patrick Armentrout / Brooke Kuhlmann

September 2020

GraphQL Federation | Full Talk

By Julian Ramlal

July 2020

Ethics and programming - A simple light framework for developers | Lightning Talk

By Kevin Glynn

AMA w/ Brad Feld from Foundry Group | Full Talk

By Brad Feld from Foundry Group

June 2020

Alone Together: the Neuroscience of Connection and the Limitations of Digital Presence | Lightning Talk

By Daniel Frampton

it { should be a_good_talk } | Full Talk

By Paul Sadauskas from TextUs

May 2020

Don't @ me! Instance Variable Performance in Ruby | Full Talk

By Aaron Patterson from Shopify

April 2020

Design Patterns: The Key to Refactoring Rails MVC | Lightning Talk

By John Travers

Migrating Rails from Heroku to AWS | Full Talk

By Carleton DiLeo from Algoly

March 2020

Thinking Inside the Box: Checklist-Driven Development | Lightning Talk

By Andrew Ek

Evolution of a Cloud Native Architecture | Full Talk

By Mike Gehard

January 2020

Milestoner | Lightning Talk

By Brooke Kuhlmann

Encapsulating Views | Full Talk

By Joel Hawksley of Github

November 2019

How we Teach Human Bias to Machines, and What To Do About It | Full Talk

By Ursula Moreno-Vanderlaan from Techtonic

October 2019

How we deliver software at Brandfolder | Full Talk

By Brett Nekolny - Head of Engineering @ Brandfolder

Rails API performance and sparse fields | Full Talk

By Logan Sears - Technical Product Manager & Sr. Software Engineer @ Brandfolder

August 2019

Better Service Objects With Dry-Transaction | Full Talk

By Paul Sadauskas from Textus

April 2019

Taking Lead | Full Talk

By Marty Haught

February 2019

Move Fast and Break Things | Full Talk

By Josh Thompson


We are always looking for speakers for the Boulder Ruby meetup. Presentations are expected to either be 15-35 minutes long with questions, or a 5-10 minute lightning talk. Topics can be either anything rubyish/rails or software development. (We've had presentations on k8s, machine learning and interviewing, for example.) See above for more examples of past presentations.

It's a friendly group. Audience is typically 15-40 folks depending on topic/speaker. The audience experience level varies from "I just graduated from Turing" to "I help run railsconf".

If you are not in the Denver/Boulder area, we have the equipment for a remote presentation (Zoom or Google Hangouts). Tweet us or contact Dan Moore at mooreds+boulderb@gmail.com to discuss speaking, or if you have more questions.

Resources / Things We Like