Private package repositories using just Stack and Git
If you’re working in an organization that maintains a private Haskell codebase chances are you’ve stumbled upon the problem of distribution of packages. The ...
All Posts
2022
2018
Internal convention is a mistake
In this post I’m gonna highlight the issues of the “Internal” modularisation convention and provide a proper solution to the same set of problems.
2016
First-class sums and products
Today I’m announcing the “compound-types” library. This library provides first-class multi-arity product- and sum-types and neat type-level utilities for the...
2015
If Haskell were strict, what would the laziness be like?
Recently a question by Chris Done on Reddit has spawned yet another debate on the subject of whether Haskell’s laziness is actually a good thing.
Announcing the refinement types library
Have you ever looked for a numeric type with a zero to hundred range to describe percentage? Maybe a zero to one to describe a proper fraction of something? ...
Announcing the first class records library
Today I’m releasing the “record” library, which is an API of just two quasi-quoters, providing a full-scale solution to the notorious records problem of Hask...
2014
A taste of State: parsers are easy
Like many other Haskellers even after considering myself an expert in the language I still get that amazing “wow” moment, when I learn another elegant thing ...
Hasql benchmarks
This post is all about the performance of the “hasql” library and particularly its PostgreSQL back end in comparison to its popular direct competitors: “HDBC...
Haskell's modules system has problems with composition
Composition and Decoupling
Announcing the "stm-containers" library
A couple of days ago I released the “stm-containers” library. In this post I’ll talk about the motivation behind the library, its features and performance.
Tutorial: Profiling Cabal projects
Profiling in Haskell can be an overwhelmingly confusing task. There’s plenty of little things you need to set up right to be able to perform it. This post ai...