Learn more about EmberFest 2018

Honey, I shrunk your Ember app

Simon Ihmig
Simon Ihmig

Ember does not have the best reputation for being suited for mobile apps, mostly for being "too large". But why does size matter, and how can we keep it small? Future techniques like tree-shaking and code-splitting will support this task. But there are quite a few things you can do today to reduce your bundle size.

Based on the experience of optimizing my own app, this talk will guide you through the iterative process of measuring, analyzing and optimizing your app's size. For each of these phases I will introduce you to some essential tools and helpful practical tips.


Simon is a co-founder of kaliber5, a consultancy in Hamburg, Germany, where he builds ambitious web applications during the day, and Ember addons at night.

ELS - the Ember Language Server

Tobias Bieniek
Tobias Bieniek

vim or emacs, text editor or IDE, no matter what you use to write your Ember applications you will likely use some form of editor integration. Some only provide code highlighting, others provide integrated linting and sophisticated code navigation. In this talk we will take a look at the Ember Language Server powering the Visual Studio Code plugin. We will talk about the features it provides and how they are implemented, and discuss what else is planned for the future.


Tobias Bieniek is a member of the Ember CLI team and active member of the Ember community working on a number of popular addons. He recently joined the team at simplabs where he now does full-time Ember.js consulting and development.

The State of Community Documentation

Kenneth Larsen
Kenneth Larsen

Ember takes pride in having great documentation. So much that we even have a Learning Team dedicated to keeping the official documentation great.

But what is the actual state of community documentation?

After scraping and analysing just about 5000 readme files from Ember addons created by the community, I’ll present common pitfalls and ways to improve our community documentation.


I’m a code janitor at Linkfire and an Ember.js contributor with a special love for documentation and accessibility.

Going Realtime with Ember

Michael Lange
Michael Lange

It used to be that only the most impressive websites would update data live as you sat on the page. Now, as the lines between native apps and websites blur, this is becoming expected behavior. What was once cutting-edge tech is now standard-issue for a good user experience.

See how HashiCorp made the UI for the cluster scheduler software Nomad realtime with Ember Concurrency, Ember Data, and the rendering layer we know and love.


A UI engineer at HashiCorp with 4+ years of experience in Ember.

Bringing coffee tasting to rural areas with Ember & Cordova

Francesco Novy
Francesco Novy

This talk will show learnings and traps to avoid when creating apps for mobile devices which are built with web technologies (e.g. with Cordova) and should also work without an internet connection. Common problems will be shown with concrete solutions, like for example: How & when to sync data, how to improve the perceived performance, and how to deploy an app to multiple platforms & app stores.


Francesco has been developing web apps for six years. While JavaScript is his main responsibility, he is also deeply involved in all HTML and CSS development. He is currently working for Cropster, a company based in Austria and Sacramento which develops services & solutions for all things coffee, where he is the lead frontend developer. One of Cropster’s main products is a coffee profiling software.

Mastering the Art of Forms

Danielle Adams
Danielle Adams

> *“Building forms in @emberjs is terrifying because I'm stuck with decisions I always later regret.”*

> - me in another lifetime

HTML forms can represent a time before JavaScript was an integral part of application development. Creating forms isn’t always the most exciting part of development and, at times, it may seem daunting. Fear not! I’d like to talk through some pain points of building an important piece of user interface: we will discuss what to do, what not to do, which Ember addons have come to the rescue, and how to make forms accessible.


Danielle is a New York City-based software engineer at Heroku. Her expertise stretches between front-end heavy applications built with Ember and a wide range of back-end work. In her free time, she enjoys live music, teaching others to code, collecting cactus plants, and hanging out with her cat.

From the Browser to the Home Screen: PWAing Your Ember App

Kevin Pfefferle
Kevin Pfefferle

For EmberConf, we built a cutting-edge Ember mobile web app to serve as a convenient up-to-the-minute reference for the conference's schedule. Now updated for EmberFest, I'll highlight how we made this conference schedule app a fully compliant Progressive Web App. We'll walk through the steps needed to take your mobile Ember app out of the mobile browser and onto your users' home screens. With new native platform support available just this year and the backing of the always-amazing Ember addon ecosystem, making your Ember app fully PWA capable has never been easier or more worthwhile.


Currently a full-time Ember consultant with 201 Created, Kevin has been building products for the web for well over a decade. With diverse experience ranging from nonprofit digital marketing to VC-funded startup CTO, Kevin enjoys taking complex topics and presenting them in a way that's readily applicable to any project.

Crafting Web Comics with Ember

Jessica Jordan
Jessica Jordan

Are you a fan of comics or have you ever dreamed of becoming a comic artist yourself? Then this talk is just for you.

We will see how both recent and matured Web APIs can be leveraged to tell our own, rich and interactive stories on the web. We’ll take a look on how we can use Ember.js to help us create an online comic book that makes any comic art fan’s heart leap for joy.


Jessica Jordan is a member of the Ember Learning Core team and a software engineer at simplabs. She is an editor at The Ember Times and organizes the Ember Berlin meetup. She is a big fan of CSS, art and comics.

Transformers: Codemods in Disguise!

Jonathan Jackson
Jonathan Jackson

The core of this talk revolves around a allegorical story. We follow a "hero" (an emoji) who discovers a "badFunction" and realizes the implications in her codebase. Though easily able to fix the problem in the one instance she discovered it she quickly realizes that the problem is much much bigger than she originaly thought.

After attempting to resolve the problem with regexes she attends a Meetup that discusses JSCodeshift and she tries to fix the problem through the codebase with a Codemod.


Jonathan (@rondale_sc) is a seasoned Ruby and Rails aficionado turned Ember expert. He hosts the Ember Weekend podcast, a preeminent Ember and programming news source. Jonathan works at 201-created as a JS/Ember consultant.

No Graph Theory Required: Ember and GraphQL in Practice

Rocky Neurock Chad Carbert
Rocky Neurock and Chad Carbert

As Ember developers, a large percentage of us work on data-intensive applications. Ember Data and JSON:API give us really powerful tools for interacting with our data. Sometimes these tools still aren’t flexible enough and we end up implementing our own data model witchery/wizardry. In this talk we’ll explore why, and how, we transitioned to GraphQL with Ember, along with some tips and techniques you may want to try out in your own projects.


Rocky and Chad are Senior Frontend Developers at kloeckner.i in Berlin. They are both ex-Portlanders who spent years being involved in the Portland Ember community, attending EmberConf and participating in Ember meet ups. Now they enjoy being involved in all things Ember in Europe.

Principles from leaders across the Ember community

Scott Newcomer

Principles can help guide a software project towards successful completion by helping guide your team through difficult situations, create team cohesiveness, and set expectations of standards. Ultimately principles can help ship better products.

In this talk, I gathered leader's principles across many different organizations overseeing software projects using Ember.js to help us learn from each other. I also sought to understood how Ember.js's principles helps their organization and what recommendations they have for our community to help them keep bringing value to their clients and customers.


I live my life by principles. They help guide decisions at every step of my life. Moreover, I do a lot of my work out in the open and find that discussing and testing out ideas and strategies with other people brings about a better outcome than if I kept it to myself. In the end, I love learning from other people.

The Future Of Templating In Ember

Chad Hietala
Chad Hietala

The templating layer in Ember has evolved architecturally numerous times in the history of the project. At each stage of this evolution we have been able to increase performance and ergonomics without introducing a lot of instability. But what's next for templating in Ember? In this talk I will explore the advantages of the VM architecture and why I think Ember is leading the way for a re-examination of how the larger JS community thinks about rendering.


I'm a Senior Staff Engineer at LinkedIn working on open source JavaScript infrastructure that powers LinkedIn's web properties.

Deliver fast apps even faster

Marco Otte-Witte
Marco Otte-Witte

We now have the tools to build apps that run fast (and that's only getting better as Glimmer advances) but they can only do so after having been delivered to our users. This talk explores what tools and mechanisms are available to get our apps to our users' devices faster, reducing the time until first and repeat launches.

We will look into mechanisms like HTTP/2, resource hints and lazy loading. We will also look at tooling that gives us better insight into the performance consequences each merged PR. Finally, we'll explore mechanisms in the Ember ecosystem to further optimize app delivery.


Marco is the founder of simplabs, a consultancy based in Munich, Germany specializing in Ember.js and Elixir/Phoenix. He has been working in Web Engineering since the late 90s and used many different languages and frameworks in project of all scale for enterprise clients and startups. Marco is passionate about conventions-based tools that liberate through imposing constraints.