Haskell Weekly


Issue 223 2020-08-06

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Welcome to another issue of Haskell Weekly! Haskell is a safe, purely functional programming language with a fast, concurrent runtime. This is a weekly summary of what’s going on in its community.



  • Software Engineer at ITProTV

    ITPro.TV is a fast-growing digital media business that focuses on continuing education in technical domains. We are seeking software engineers to help us build out and scale our next-generation of internal services and customer-facing knowledge and entertainment products.

  • Interos is Hiring Full Stack Haskell Software Engineers (ad)

    At Interos, we are disrupting the way Fortune 500 companies and government agencies identify and respond to risk within their supply chains. We deliver the data and insights to business leaders that help them identify, visualize and understand the ripple effects that could impact their supply chains, before they happen. Recently funded by Kleiner Perkins and pivoting to an automated solution, Interos is in essence, a start-up SaaS environment.

  • Novadiscovery is looking for a backend Haskell developer (ad)

    At Nova we use Haskell to create and simulate mechanistic models of diseases and treatments like cellular pathways, the immune system or tumor growth among others. We are currently building Jinko, a SaaS platform, and are looking for developers passionate about Science and coding to join us.

Trying to hire a Haskell developer? You should advertise with us!

In brief

Show & tell

  • GHC exercises by Tom Harding

    We’ll go through extensions one at a time, and build up a richer vocabulary for talking about Haskell programs, and look to move our assertions up into types, where they can be verified at compile time.

  • prettyprinter version 1.7.0 by Simon Jakobi

  • runhs by Daniel Brice

    Skip the minutia of project management, cabal files, or hpack. Get your casual-programming friends setup to use Haskell, with all the greatest libraries, for their one-off scripting and data munging tasks.

Call for participation