Alexandru Nedelcu - Blog

Cloud hosting services like Linode or DigitalOcean offer backup services for your VPS.

Snippet for when you’re using Circe and want to define custom Jackson serializers/deserializers from Circe’s codec definitions.

I find Scala’s community to be really nice, welcoming, warm, and productive.

Mutable collection types should only be used strategically, with purpose, otherwise for correctness/safety purposes, the default should be immutable collection types, aka persistent data structures.

I dislike Scala 3's significant whitespace syntax.

Ever had the need to deliver messages on your queue at a certain timestamp in the future?

"Sir, we have a bug!"

As Scala developers and fans of the functional programming promoted by Haskell, how do we justify the use of IO to newbies coming from Java?

The following describes snippets for executing shell commands, in Java, Scala, and Kotlin, using standard functionality.

Java’s Checked Exceptions are problematic, and it’s not only due to their ergonomics.

Me, with my son, learning the Lua programming language on proprietary macOS laptops.

Honestly, Java's mascot is pretty cool, Scala needs a mascot too.

Lightbend made Akka proprietary from version 2.7.x onward.

Java is good by modern standards, from a technical perspective, the platform having received a lot of improvements from Java 8 to 17.

Unix has a long tradition with scripting — small programs represented as text files that can be inspected, modified, and executed.

I finally managed to delete my Facebook account.

I’ve just spent over a day, going to sleep at 1:00 am, to upgrade dependencies and fix eviction warnings in the build of a Scala project.

According to today’s announcement, Lightbend is changing Akka’s licensing to “Business Source License (BSL)”.

You may think that Open Source is about having “access to source code”, whereas Free Software is about freedom.

Apuseni Moutains, Romania, near the Scărișoara Ice Cave Toxic usage patterns of technology, begone — inspired by a self-help book book 🤷‍♂️ I changed my philosophy and habits regarding the use of technology.

What if we’d use Scala’s type system for tracking side-effects in impure code, too?

Jacques-Louis David, The Intervention of the Sabine Women, 1799.

I don’t like given, as an alternative to implicit in Scala 3.

Scala is considered a multi-paradigm language, for better or worse, being one of the best OOP languages, which is why it's so versatile.

The Scala community is increasingly using Discord for “real-time chat”.

Planning the future is difficult, but can bring clarity and purpose.

I like writing about my personal projects and about programming in general.

Current events have obliterated my ability to focus, both at work, or in my personal projects.

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You can recommend the required VSCode extensions per repository to your fellow programmers.

I need an impure way (no IO) to create a resource atomically only once and later be able to know if it was created or not, so I can close this resource safely. 🤔 Jules Ivanic (@guizmaii) ⬇️ August 2, 2021 import scala.util.control.NonFatal /** Builds a "…

⌘+Click on a file path triggers my terminal to open that file inside my IDE, and that helps a lot: Demo of iTerm's semantic history I’m a terminal-first, IDE-second guy.

I just refactored a piece of code.

I stay connected to websites I care about via an RSS/Atom feed reader.

We’ve had an ING Scala Meetup last night.

Video link (open on YouTube.com) Yo dawg, I heard you liked concurrency primitives.

For self-hosting Matomo, a FOSS alternative to Google Analytics — via docker-compose: version: '3.3' services: db: container_name: mariadb image: mariadb:10.5 ports: - "3306:3306" labels: - "com.centurylinklabs.watchtower.en…

OOP couples the “data” with the methods operating on it, and that’s considered bad in FP circles, because supposedly data outlives the functions operating on it.

Video link (open on YouTube.com) Turning imperative algorithms to tail-recursive functions isn’t necessarily obvious.

These may as well be interview questions for Scala developers: Which signature do you prefer?

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ScalaTest helpers for testing effects (e.g. cats.effect.IO, monix.eval.Task).

Scala has scala.math.Ordering, Java has java.lang.Comparable.

The database schema should be described as code, in your repository.

I maintain a Jekyll blog, with tagged articles (tags specified in the Markdown front-matter), but maintaining tags isn’t easy, because I often forget what tags I used.

In strong, static, expressive FP languages, such as Scala, or Haskell, there’s the ongoing drive to “capture invariants in the type system” and “to make illegal states unrepresentable”.

I maintain a growing Screenshots folder.

Comments on the web can be toxic, and a waste of time.

This is a simple and generic IOApp and TaskApp replacement.