What Logic can Teach Us, Scala Programmers

Featuring Juan M. Serrano

It turns out that logic is a great source of exercises for mastering algebraic data types, dependent types and other Scala features. Take the challenge of using Scala 3 to prove Aristotle’s syllogisms or Smullyan’s logical puzzles, and bring your type-driven development skills to the next level!

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software-development puzzles types logic scala-3

The Middle Way for Static Typing in Spark DataFrames

Featuring Alfonso Roa

No static typing with DataFrames, too much static typing with Datasets. Steer clear of both extremes, and embrace a new proposal of typed column expressions! Brought to you with the help of functional programming patterns, Scala idioms, cats, shapeless and other libraries of the Scala ecosystem.

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software-development cats spark scala

Taming the Context Beast

Featuring Paweł Marks

Context functions are the new beasts in the Scala jungle. I’ll show you what they can do, when to be wary of them, and how to tame them. Finally, I’ll answer whether they really hate composition as much as it’s rumored.

software-development context-functions implicits scala scala-3

Speck Flavored Streaming Micro-Services with Akka

Featuring Andrea Zito

In this talk, we will dive into the world of streaming micro-services and we’ll explore together the typical development journey starting from the raw input, all the way to a persisted, clustered prototype. This will be possible by leveraging Spekka’s productivity enhancements to Akka Streams.

software-development library micro-services streaming akka scala

Say Goodbye to Implicits – Contextual Abstractions in Scala 3

Featuring Magda Stożek

Scala 3 is out, but is it worth switching to? In my opinion, yes, because the authors addressed some important pain points, and for sure implicits are one of them! In Scala 2 they’re used, confused and abused - let’s see how much better it is in Scala 3.

software-development implicits scala-3 scala

2

Grackle – GraphQL Server

Featuring Miles Sabin and Rafał Piotrowski

During this talk, we would like to introduce Grackle GraphQL server. We will show how it can be used and how it works under the hood.

software-development graphql scala

Building a Debugger for Scala 3

Featuring Adrien Piquerez

Building a debugger for a high-level programming language like Scala 3 is a challenging task. In this talk I will decompose it in smaller problems and describe our solutions: a debug server, an expression compiler and a step filter.

software-development tasty compiler debug tooling scala-3

Getting Started with Scala.js, Laminar and Vite

Featuring Sébastien Doeraene

Starting from scratch, we build a small Scala.js (https://www.scala-js.org/) application with a minimal, live-editable bar chart. We show a setup for a fast save-refresh cycle. We use Metals, sbt, Vite, Laminar, Chart.js and ScalablyTyped. Includes an intro to the FRP model of Laminar.

software-development scalably-typed laminar vite scala.is

Autograder for Functional Programming and Beyond

Featuring Dragana Milovancevic

In this talk, we present an automated approach for formally verifying the correctness of functional programming assignments.

software-development scala

Talk: Why You Should Run A/B Tests in Your Android Apps

At Deliveroo we run lots of A/B tests, and they sometimes return some very unexpected results! In this talk we'll answer questions such as "does handling 'process death' impact how often people order food?" and "how valuable is your splash screen?" by going through...

web-and-mobile testing android

Function Reuse is just Wishful Thinking

Featuring Nicolas Rinaudo

Functors, monads, etc… can be both very useful and extremely intimidating.

This talk will introduce and justify them in a real life scenario, staying away from their more academic interpretations. It will allow attendants to build a solid intuition for the problems they actually solve.

software-development flatmap apply applicative functor monad scala

Preparing Apache Kafka for Scala 3

Featuring Josep Prat

Migrating Open Source projects to Scala 3 will be a recurring task in the future. Check out our experience while proofing the migration of Apache Kafka. We’ll share the obstacles faced, like tooling and compatibility checks, as well as where the community can improve to make such migrations...

software-development interoperability java dotty scala oss migration kafka scala-3

2

Scala in Ukraine

Featuring Roksolana Diachuk and Maciej Gorywoda

Come to hear a story, leave making plans for a trip to Ukraine.

We will tell you about how Scala came to Ukraine, who was the first to use it and how, but also who are the people of the Ukrainian Scala community, what are their thoughts and plans, and how you can get involved.

software-development ukraine community scala

Managing Micro-Libraries with Scala CLI

Featuring Alexandre Archambault

Scala CLI is a new and versatile tool to compile, test, run, package, and publish Scala projects. While it’s handy for experiments and scripting, its cross-compilation and publishing support make it the perfect tool to manage micro-libraries from beginning to end, as we’ll demonstrate in this...

software-development scala-3 scala

2

Towards a Healthy & Resilient Scala Community

Featuring Adam Goodman and Darja Jovanovic

Explore answers to the questions: What constitutes a healthy community? How do we get there and who needs to participate to make it a reality? Where does Scala community stand now? And how does Scala Center's "Scala governance project" fit in all of this?

software-development scala

It Quacks but it’s not a Duck: Structural Typing in Scala 3

Featuring Michał Pałka

Imagine you could write type-safe code without having to modify your data model classes every time you update a database query. Or access members of deeply nested data structures without boilerplate. With structural typing in Scala 3 you can make these dreams come true and get even more.

software-development scala-3 scala

Team Topology - Enablement mode

Type-Level Programming in Scala

Featuring Matt Bovel

Learn how to increase your design space for compile-time verification in Scala 3!

software-development type-level-programming scala scala-3

Data-Centricity: Rethinking Introductory Computing to Support Data Science

Featuring Kathi Fisler

This talk argues that a common introductory course that covers both data science and data structures supports students and provides curricular flexibility, while also bringing social impacts of computing into the early curriculum.

software-development data data-centric

A Practical Skeleton for your next Scala/Scala.js Web Application

Featuring Alexis Hernandez

I’m sure that you have saw yourself writing the same boilerplate code many times when working in new web applications (registration/login/layout/etc), that’s was my case until I decided to create a nice skeleton that’s easy to get into by juniors, easily saving 1 month of work for every new app.

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postgresql play-framework scalabily-typed slinky react software-development scala.js web-application