Conference Talks

I've spoken at more than 36 events in 14 countries, primarily about Bundler, security, and web development. This list of talks includes links to blog posts, slide decks, and videos wherever possible. If you'd like to invite me to speak at your event, please contact me directly.

From No OSS Experinece to the Core Team in 15 Minutes Per Day

Using and contributing to open source has been a cornerstone of the Ruby community for many years. Despite this strong tradition, it’s hard to find anything collecting the likely advantages and costs of working on open source. This talk will introduce open source work, the benefits and costs of doing that work, and then provide a straightforward list of activities that can be done by anyone, no matter their level of experience with programming. Pick a project, schedule at least 15 minutes per day, join the core team. It’s your destiny!

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A Year of Ruby, Together
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Package Managers: Before And After NPM (Panel)
Don't Forget The Network: Your App Is Slower Than You Think

When you look at your response times, satisfied that they are "fast enough", you're forgetting an important thing: your users are on the other side of a network connection, and their browser has to process and render the data that you sent so quickly. This talk examines some often overlooked parts of web applications that can destroy your user experience even when your response times seem fantastic. We'll talk about networks, routing, client and server-side VMs, and how to measure and mitigate their issues.

Including People

This talk is about the twin open source project goals of, on the one hand, increasing participation and contribution to an open source project, and on the other hand including everyone while eliminating discrimination and harassment (whether deliberate or accidental). I'll talk about different approaches to reducing discrimination, including better documentation, better development tooling, explicit onboarding process, and codes of conduct. I'll also cover concrete steps that anyone can take to help increase inclusion and participation in the teams, communities, and open source projects that they are involved in.

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Introducing Ruby Together

Ruby Together is the Ruby programming language trade association. It funds maintenance and development on Ruby open source tools like Bundler and using funds from developers and companies that use Ruby.

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  • Oct 17, 2015 EuRuKo 2015 Lightning Talks
  • Jun 18, 2015 MagmaConf 2015 Lightning Talks
  • Jun 12, 2015 RubyNation 2015 Lightning Talks
  • Apr 12, 2015 RailsConf 2015 Lightning Talks see slides
How Does Bundler Work, Anyway?
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Lies, Damn Lies, and Metrics
  • Sep 17, 2016 StrangeLoop 2016 see slides
  • Aug 07, 2014 Velocity Webinar 2014
  • Jul 16, 2014 Distill 2014 see slides
Everything You Ever Wanted to Know About Diversity But Were Too Afraid To Ask

Co-presented with Ashe Dryden. See also "How To Be An Ally".

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Development Was The Easy Part

We want to produce reliable, functioning software… but we often don’t. The cliched cry of “but it works on my machine” demonstrates the myopia that most web developers (including me) suffer from: we spend almost all of our time working with a development environment. This leads us to think of production as “like development, with people using it”. Then, when things go wrong, we think “oh, I see now, production is like development except this one thing that went wrong”. This is exactly the opposite of the mindset we need. Production is fundamentally different from development, and it’s important to keep that in mind. This talk discusses some of those fundamental differences, including load balancing, metrics, data store reliability, and network partitions. Don’t get stuck rebuilding your servers at 3AM because you went with the option that was easiest during development!

How To Be An Ally

This talk presents a theory of ally work that encourages everyone to do what they are able to create an open, inclusive, empathetic, and compassionate culture.

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  • Mar 28, 2014 RubyConf Philippines 2014 Lightning Talks see slides
  • Feb 25, 2014 Úll 2014 Lightning Talks
  • Dec 04, 2013 RailsBridge Lightning Talks Meetup see slides
Extreme Makeover: Rubygems Edition
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The Iceberg of Webdev

If you do web developement, you've probably noticed that "distributed systems" and "service oriented architecture" are really hot topics right now. I have a surprise for you, though: you already work on a distributed system with a service oriented architecture, because every webapp is one. That means you've already decided how your distributed system is going to work, and chances are good you didn't even know you were making those decisions. This talk will uncover the hidden decisions that shape web applications, including how the org chart limits service architecture, and how consistency and availability by default seems great until it's 3am and the data store needs to be rebuilt by hand to bring the site back up. Once the decisions aren't hidden anymore, I'll explain some other options, and why you might want to pick them to save yourself pain in the future.

You Don't Know Bundler
  • Oct 09, 2013 Rails Israil 2013 Lightning Talks
Deathmatch: Bundler vs. Rubygems

The story of the quest to make `bundle install` faster; in which Rubyists around the world inadvertently DDoS, witness its ignominious death, and vow to rebuild it from the ashes stronger than it was before. Then, a tour of the changes; why is Redis so much slower than Postgres? Marvel at the gorgeous metrics and graphs used to measure and optimize; gasp in delight as we track, live, exactly how many Heroku dynos are needed. Finally, a happy ending: today, the server responds to requests TWO ORDERS OF MAGNITUDE faster than it did before.

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Hack Your Bundle For Fun And Profit

Bundler has turned out to be a super-useful tool for installing and managing dependencies, but it has hidden depths! This talk discusses some of the ways you can use Bundler and other tools together to boost your development productivity. I’ll walk through how to use the lesser-known but very handy commands like bundle gem, bundle open, and a few others. I’ll show you how to use Bundler to make sure you always run your app on the right version of Ruby, how to search through every gem in your Gemfile with a single command, and how to check for newer versions of the gems you use.

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`bundle install` Y U SO SLOW
Security Is Hard, But We Can't Go Shopping

The last year has been brutal for Ruby and security. Ruby has gotten quite popular, which is really exciting! But it also means that we are now square in the crosshairs of security researchers, whether whitehat, blackhat, or some other hat. Before 2013, only the Ruby and Rails core teams had meaningful experience with security issues. This year everyone got meaningful experience. Vulnerabilities are everywhere, and handling security issues responsibly is critical if we want Ruby (and Rubyists) to stay safe and in high demand. I’ll discuss responsible disclosure, as well as repsonsible ownership of your own code. How do you know if a bug is a security issue, and how do you report it without tipping off someone malicious? As a Rubyist, you probably have at least one library of your own. How do you handle security issues, and fix them without compromising apps running on the old code? Don’t let your site get hacked, or worse yet, let your project allow someone else’s site to get hacked! Learn from the hard-won wisdom of the security community so that we won’t repeat the mistakes of others.

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Deploying with Bundler

Rails 3 is here, and ships with Bundler by default. Bundler’s default mode makes things easy on developers, obsoleting that out of date list of gems in your app’s readme. Deploying, however, isn’t as obvious. What if you’re using Sinatra or something else that isn’t Rails? How do you deploy a bundled app using Capistrano, or Vlad, or your own script? What are the best practices for deploying to an app running in Mongrel, Unicorn, or Passenger? What if your server doesn’t have an internet connection to talk to These questions and others will be answered by a member of the Bundler core team.

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Why Bundler?

There comes a point in every programming language's life, where the question of dependency management arises. That is, "if A requires B and B requires C, and C requires D, what happens when I install A." Believe it or not, that's actually an easy question, the hard question is "What happens when I install A, but I have two apps on a machine that rely on different versions of C and D. Ruh-oh Fortunately, Andre will be joining us at SunnyConf to talk about painless dependency management with Bundler. Bundler, which has been released alongside Rails 3, has been designed to fix all of your dependency problems. It makes using dependencies easy and reliable at the same time. Bundler can handle your Rails gem plugins, your application's dependancies, and even your dependencies' dependencies, all automatically. In this talk, Andre will walk us through why Bundler was written, and why you should be using it for all of your Ruby applications. He'll talk about how to use it effectively in common scenarios and even cover it's usage within Rails 3, Rails 2, Sinatra, and your own Ruby application. He'll also share where Bundler is headed in the future.