Three tips when starting with FP in Scala:
Use IO everywhere instead of the generic F[_]
Focus on using existing typeclasses rather than creating your own from scratch
Consider using Tapir to bypass the initial learning curve of http4s
https://www.reddit.com/r/scala/comments/1mrc84p/should_it_be_that_hard_am_i_missing_something #scala

Version 0.18.0 of the Smederee, your frugal darcs hosting forge has just been released.

Major things happened in repository health checks and we started to streamline the permission checks using a proper permission model instead of hacky "who owns what" in the code.
So the Smederee will provide proper RBAC in the future.

As usual have fun and check it out:

https://smeder.ee/~jan0sch/smederee

Scala.js
https://www.scala-js.org/

Am I broken for liking Scala.js more than Scala?

#Scala has been the #1 FP language for some time. But this particular screenshot from https://plrank.com doesn't say the quiet part out loud — in these rankings Scala is no longer in the top 20 languages, a list that contains Dart, Ruby, Lua and VBA.

And sorry for being that guy saying it, but being #1 in the list of unpopular languages that few people use isn't great. I really hope this ranking is flawed, or that Scala gains some ground because it's a great language.

"traverse_:" failing to work on #scala 3 whitespaced syntax and forcing me to use "traverseVoid:" just because, has to be one of those ridiculous things that made spend a little too much time asking wtf

Oooh, email this morning from PolyFilmLabs telling me my #Scala 50 reversal film has shipped on its way back to me! That's exciting.

I've 2 more B&W rolls to dev, and my #Trichrome roll to re-scan, so could be busy!

Re-scanning the Trichrome roll because I thought setting the scanner exposure for all three parts (RGB) would help. Given the different filter densities, it didn't. And next roll I need to find more interesting compositions, not just moving light!

Today I wanted to write some code in #Scala. What could be simpler, yeah? Well, a lot of things could be, but I chose this. So, yeah, there's an old project we were working on with friends years ago. A lot of things are gone since then, but I still maintain and host the project, and want to do some work on it. The project is a web app called https://github.com/codingteam/loglist

sbt 2.0.0-RC2 is released! sbt 2.0 is a new version of sbt, based on Scala 3 constructs, and Bazel-compatible cache system

- Plugins published against sbt 2.0.0-RC2 will be bincompat with 2.x series
- All tasks are cached by default
- dependencyTree task is changed to an input task that can generate DOT etc
https://eed3si9n.com/sbt-2.0.0-RC2 #Scala

GoLangs nil pointers are a constant form of stress at this point, and the if err is nil loc adds too much noise around proper business logic

I’m due to get stuck in a new language, for grpc and rest api’s, what would you pick?

Secretive startup backed by Concur co-founders uses AI to rethink customer experience software - SCALA.AI co-founder and CEO Ardie Sameti (left) and co-founder/executive chairman... - https://www.geekwire.com/2025/secretive-startup-backed-by-concur-co-founders-uses-ai-to-rethink-customer-experience-software/ #ardiesameti #mikehilton #startups #rajsingh #scala

"It's a small feature with huge potential, yet it still took years to happen." Who would believe that PHP will have the pipe operator sooner than Scala? #php #scala https://thephp.foundation/blog/2025/07/11/php-85-adds-pipe-operator/

programmers out here, what code completion tools are you using? are they ml tools? copilots? standards intellisense features of your language? custom models trained on your own codebase?
i realized i need a mental crutch. especially when i'm not in a shape, and the work doesn't wait. still supportive even if it generates half-nonsense. ideally, if it also considers the context of a few opened files, but not necessarily.

on the other hand, i would like sustainable and lightweight solution. so, no huge llms

Clever new #Scala testing mechanism from Haoyi: http://www.lihaoyi.com/post/GoldenLiteralTestinginuTest090.html

tl;dr -- "Golden Literals" in tests will check whether the actual result matches the expected *and* propose a code change to the test iff the answer is "yes this changed, and the new value is now correct".

Nicely pragmatic (as is typical of Haoyi): I don't use uTest much, but I could see using it a bit just to leverage this.

Let's go!

«We really cannot stress enough how impressed we are with Scala Center and Virtus' work on this front. Scala Native 0.5 is quite the triumph, and Cats Effect 3.7 is the proof. Going forward, you should essentially expect rough parity between scheduling functionality on JVM and LLVM, with JavaScript now being the unusual one (due to its single-threaded nature).»

https://github.com/typelevel/cats-effect/releases/tag/v3.7.0-RC1

The Stack Overflow 2025 survey results are online. Nothing has changed for Scala; it still has its 2.6%. Meanwhile, Rust and Kotlin are growing, while Java has declined slightly. Interestingly, I don't see Haskell on the list anymore. https://survey.stackoverflow.co/2025/technology #scala #java #rust #kotlin #elixir #fsharp #ocaml #gleam

Sicherheitsplattform: Socket erweitert Sicherheitsangebot um Scala und Kotlin

Socket scannt nun auch Scala- und Kotlin-Projekte auf Sicherheitsrisiken. Die Plattform wächst sprachlich weiter. Auch das Dashboard wurde überarbeitet.

https://www.heise.de/news/Sicherheitsplattform-Socket-erweitert-Sicherheitsangebot-um-Scala-und-Kotlin-10502620.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege&utm_source=mastodon

If you're on cats-effect 3.6.2, upgrade to 3.6.3 as soon as possible, as it turns out there is a huge bug! #scala https://github.com/typelevel/cats-effect/releases/tag/v3.6.3

i'm completely lost in scala building tools. what is sbt server, and what is bloop server? can they coexist? can you compile code through `sbt compile` and see the result in your IDE connected to bloop using metals? if not, what's the way?