Generic IOApp alternative This is a simple and generic IOApp and TaskApp replacement. For those instances in which you want to work with F[_] and not IO or Task, even in main apps. Alexandru Nedelcu (@alexelcu)

Let's build a Scala mock library Building a mock library was a great exercise that taught me a lot about Scala. It’s an experience that forced me to think a lot more about how Scala’s type system works – and I definitely feel like I understand the language much better as a result. Sid Shanker (@sidpshanker)

How To Make Integration Tests Less Flaky Using this pattern, services declare their dependencies in a docker-compose and integration tests will become less flaky. Adam Gordon Bell (@adamgordonbell)

dotty+scala.js+async: interesting options With the soon-to-be-released dotty 3.0.0-M1 (2020 Q4) and scala.js support rapidly improving (thanks @sjrd and team!), we can soon use scala.js with dotty. aappddeevv

Option  - the null of our times Things I would have told my younger-self about using Option in Scala. Adam Gajek (@adam_gajek)

Top Link of September: Polynote, A better notebook for Scala The most visited link last month! Vincent Brule (@BruleVincent)

10 % discount for Zionomicon A new book explaining all the mysteries of Zio. Use promo code "scalatimes" to get a discount! Ziverge (@zivergetech)

Why Scala? A gentle introduction which may help you get the best answer to this fundamental question. Adam Warski (@adamwarski)

Tagless Final - 4 error channel encodings (Error Handling - Part 1) In this video we will see 4 possible ways to encode the 2 common error channels for business as well as technical errors. Among them are the mtl and the bifunctor encodings. This is part 1/2 DevInsideYou (@DevInsideYou)

Scale By the Bay, November 12th - 14th, online event Starting at 3:30 PM CET. Use promo code "FUNCTIONAL" to get a 10% discount for our readers! Scale By The Bay (@ScaleByTheBay)

Functional Data Modeling, November 18th - 19th, Online training In this course, developers will learn how to use functional Scala to construct simple, precise, and flexible models of any business domain. Use code "ScalaTimes10" to receive 10% off at the checkout. John A. De Goes (@jdegoes)

ZIO Hackathon, November 20th-21st, online event Attendees of ZIO Hackathon 2020 will be able to attend talks on ZIO projects from leading open source contributors, as well as receive expert mentorship in contributing features, bug fixes, and documentation enhancements to the ZIO ecosystem of libraries. Ziverge (@zivergetech)

Functional Scala, December 3th-4th, London Learn the critical topics you need to excel as a Scala developer, and celebrate the Scala programming language and community. Ziverge (@zivergetech)

Scala 3 for Scala 2 developer, December 8th - 10th, Online training In this course, developers who are already familiar with Scala 2.x will get a high-speed introduction to all the changes coming in Scala 3, including semantic changes, syntactic changes, new features, and dropped features. Use code "ScalaTimes10" to receive 10% off at the checkout. John A. De Goes (@jdegoes)

Functional Scala Megapack (3 workshops) Functional Design + Functional Data Modeling + Scala 3 for Scala 2 developers. Use our special link to get a 15% discount! John A De Goes (@jdegoes)

prox A purely functional Scala library for working with system processes. Daniel Vigovszky (@dvigovszky)

patterns-serverless-scala-minimal Minimal setup for starting with serverless Scala on AWS Lambda using AWS CDK for deployment. Christian Kjær (@codetalkio)

TranzactIO ZIO wrapper around Scala DB access libraries Gaël Renoux

scala-typesafeequals A macro-based type safe equality library for scala 2.11/2.12/2.13. Eric Peters (@ericpeters)

dhall-generic Dhall generic decoder for Scala. Jichao Ouyang (@oyanglulu)

Scala.js 1.3.0 This release brings one of the most awaited features for Scala.js: module splitting support! It is now possible to split the generated .js file into multiple modules, to optimize download size in multi-page applications or speed up incremental bundling. In addition, this release contains a number of new methods and classes in the JDK implementation, among which the higher-order methods of the java.util collections, and the locale-sensitive overloads of String.toLowerCase, toUpperCase and format. scala.js contributors (@scala_js)

Kite Kite adds AI powered code completions to your code editor. Supports Scala with many editors. Kite (@kitehq)

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