#DevtoHaskell

There is a category of web tools I will call document converters — the ones that take a Word file or...

Think of any wrapped context in Haskell (like Maybe) as a sealed plastic Lego storage box: Data...

It is assumed that Neovim, lazy.nvim, and Telescope are already configured. Install Haskell...

JSON decoders and encoders for Haskell in the style of elm/json — a tour of hs-json-codec and hs-json-parser, and how I use them in elm2nix.

In discussions around AI-assisted programming with LLMs, I often see two opposing camps. And since...

I was tired of six terminal tabs for tunnels, port-forwards, and local stacks. lazycomd is a...

What Is Temporal Temporal is a server that enables reliable execution and management of...

Types and values: True :: Bool, Just 7 :: Maybe Int. Bool and Maybe Int are types; True and Just 7...

TL;DR: We'll build a production-grade producer-consumer queue in Haskell using Redis as the message...

Originally published at norvik.tech Introduction An in-depth analysis of running 2...

Do you care what programming language to use? I often think about reddit discussions, where someone genuinely asks how they can find a Haskell job, for example, and there are always people who advise against looking for a job based on the language…

rdigest is a small CLI-based tool I made in late 2024. It began as a way to manage my daily reading (online digital consumption) because YouTube's UI was distracting, RSS feed readers and their infinitely-scrolling pages were overwhelming and I had cut…

The Problem with Learning Haskell When I started learning Haskell, I always struggled to find a suitable scenario to apply it. Without a concrete problem to solve, it is difficult to make real progress.…

A Magma is a set with a (closed) binary operation. A Semigroup is a magma where the operation is associative. class Semigroup a where ( ) :: a -> a -> a -- ^ read as "append" Must satisfy: (x y) z == x (y z) -- associativity Example: [1,2] [3,4] [5] ==…

How currying, functors, applicative functors and monads from Haskell led me to build a parallel orchestration library for Kotlin coroutines with zero overhead.…

The (natural) language we use is influenced by how we feel and what we think, but it also works the other way: just by the way we approach things, we can make our experience better or worse.…

TL;DR What is it? PureMyHA is a lightweight, asynchronous High Availability manager built exclusively for MySQL 8.4. Why Haskell? To leverage its robust type system and fearless concurrency for rock-solid state management where failure is not an option.…

Hi, I'm Nikita Volkov - architect, consultant, and the author of hasql, one of the two main PostgreSQL drivers in Haskell used in major production projects like PostgREST and IHP.…

The CPS transformer from Chapter 6 of EOPL3 reuses the LETREC language from Chapter 3 with the addition of multiargument procedures and multideclaration letrec expressions.…