Stanko Krtalic Rusendic: Talks

Working at 37signals: The birthplace of Ruby On Rails

2026-02-14T14:10:40Z

Last July I started working at 37signals, the company behind Basecamp, Hey & Fizzy and the place from which the very first version or Ruby On Rails was extracted back in 2004.

It's still the company with the largest influence on the direction of Rails development with major contributions like ActiveStorage, SolidQueue, Turbo & Stimulus.

I'll talk about how the company works and what it's like to work there.

Deconstructing Action Cable

2024-01-24T12:00:00Z

A deep dive that explores and explains how Action Cable works starting from the initial HTTP request all the way to sending bytes over the WebSocket.

Slides Article

Hotwired

2022-06-15T12:00:00Z

This talk will be an introduction to Hotwired, a bundle of three frameworks that enable server-side rendered pages to act and feel as single page applications.

The frameworks are:

Turbo - a successor to TurboLinks but with expanded functionality through the addition of turbo frames and turbo streams
Stimulus - a component framework that turns pre-rendered HTML into JS components
Strada - his part of the talk is reverse engineered out of Hey's source code; Strada is a framework/communication protocol that enables the frontend JS to interact with native host functionality

Slides

MRuby crash course

2019-01-29T12:00:00Z

The talk introduces MRuby and explains the motivation behind the project by contrasting it with the traditional approach in embedded devices and it's applicability to real-world projects.

Do you really need WebSockets?

2018-10-06T15:00:00Z

People mostly use WebSockets whenever they need a real-time web component. Turns out WebSockets aren't the best solution for everything.

Over the years I've had this conversation a couple of times.

People use WebSockets without knowing what they are, why they use them or what alternatives exist.

Existing alternatives provide advantages such as universal compatibility, simple implementations and low upkeep.

This talk will give you an overview of how WebSockets and the alternatives work, and when you should use one or the other.

Article

HTTP2.rb

2018-05-03T12:00:00Z

Why aren't all Rack apps served over HTTP 2 by now? What exactly is HTTP 2 and is it better than HTTP 1.1? How can you use it in Ruby?

RabbitMQ is more than a Sidekiq replacement!

2018-02-27T12:00:00Z

We are used to Sidekiq being the defacto norm for a queue service in the Ruby ecosystem. If you replace Sidekiq and Redis with RabbitMQ you may find yourself with a few less problems, and more tools to scale your app.

This talk will go into problems with using Sidekiq and Redis as a queue service, migrating to RabbitMQ, and using RabbitMQ’s features to scale your Ruby apps a bit easier.

Slides Article

Helix

2017-11-28T12:00:00Z

Helix is a Rust library for writing Ruby extension. With it you can write hassle free extensions with confidence that they won't fail.

This talk will introduce you to Ruby extensions, Rust and Helix.

Slides

Developing a Safer Web with Rust

2017-10-06T16:55:00Z

Developing web services with Rust. Using Rust's built in safety and open-source frameworks to make fast and fault-tolerant web applications.

We all want to write high-performing, scalable, safe code with as few bugs as possible. But with threading, data races, SQL injection, out-of-bounds access and segmentation faults this can prove to be a hassle.

Rust solves most of those issues out-of-the-box, but with projects such as Rocket and Diesel those guarantees can be extended to the level of a framework.

Providing an easy and fast way to write high-performing fault-tolerant web applications.

Perhaps your next web app should be written in Rust?

Developing a faster and safer web with Rust

2017-05-17T12:00:00Z

Rust provides a safe way to do concurrent programming without the speed penalty. It's finally web-ready. This talk will guide you through creating a web application in Rust. Through that process, available libraries will be outlined and compared to their counterparts in other ecosystems.

GraphQL

2017-03-28T12:00:00Z

GraphQL is a better way to write APIs. It is auto-documenting, simple to understand, flexible yet powerful. Lets explore how we can build APIs using its Ruby driver and solve common problems that we face when using techniques such as REST, JSON::API or HAL.

Slides

Steganography

2016-10-25T12:00:00Z

Sick and tired of those pesky watermarks ruining photos? Or perhaps you have something to hide, but don’t want people to suspect something? Using Ruby and steganography it’s possible to hide messages in plain sight. Though it seems useless it’s applications are limitless.

Slides

Stubs, Mocks & Spies

2016-09-28T12:00:00Z

1000 tests running for hours on continuous integration services should be a thing of the past.

Don't lose time waiting for your tests.

Stubs, Mocks & Spies

2016-04-28T12:00:00Z

What are stubs, mocks, spies and fakes?

How can they improve my tests?

Those are two questions that I want to answer with this talk.

Stubs, mocks and spies are essential tools of every testing library.

Slides

Docker for Rubyists

2016-02-25T12:00:00Z

Use Docker to solve common development and deployment problems without making too many changes to your workflow and development environment.

The goal of this presentation is to introduce you to Docker, present it as a development tool and to explain the strengths and weaknesses of this development approach.

Slides

Ruby Extensions

2015-03-31T12:00:00Z

How to achieve better performance by offloading computationally heavy tasks to a "faster" language, but still keep a Ruby-like interface

Slides