Haskell Weekly

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.

Featured

• Announcing Ema - Static Sites in Haskell by Sridhar Ratnakumar

  Announcing Ema, a new static site generator in Haskell with hot reload destined to develop an unique kind of apps.

• Consider the Ellipse by Tony Day

  In the course of chart-svg development, I’ve considered the ellipse. Quite a bit.

• GHC 9.2.1-alpha2 now available by Ben Gamari

  The GHC developers are very happy to announce the availability of the second alpha release in the 9.2.1 series.

• Haskell Foundation April Update by Andrew Boardman

  Technical Agenda, Affiliations, Community, Volunteering & Sponsors

• Introduce BIO: A Simple Streaming Abstraction by Dong Han

  In Z-IO v0.8, we introduce a new BIO type to simplified streaming processing.

• The Pains of Path Parsing by Michael Snoyman

  I’ve spent a considerable amount of coding time getting into the weeds of path parsing and generation in web applications.

• SSA transformation for GHC’s native code generator (Part 1) by Benjamin Maurer

  For my first big project on GHC, I wanted to try and improve the Graph Coloring Register allocator in NCG.

Jobs

• Haskell @ Mercury

  Mercury is building a bank for startups. We’re hiring Haskell engineers (generalist and backend). Apply if you want to work with Haskell/Yesod/Persistent and React/Redux/Typescript. You can check out <www.lifeatmercury.com> (pw: charlietuna). Reach out to veronica@mercury.com with questions.

• Haskell Developer at Concordium

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

In brief

• First release candidate for stack-2.7 by Emanuel Borsboom

• Functional Reactive Programming and the Web Audio API (pdf) by Mike Solomon

  This paper shows how FRP can be used to build reactive audio applications that blend the WebAudio API with other browser-based APIs.

• Ormolu internship by Mark Karpov

  I think it is cool to be paid to work full-time on a project like this. If you concur, we have good news for you!

• Proving Stuff in Haskell (video) by Mads Buch

  This Curry-Howard correspondence is another way to view types and terms in programming.

Show & tell

• isScopedTypeVariablesEnabled :: Bool by Chris Smith

  Proof that turning ScopedTypeVariables on or off can silently change the meaning of existing code.

• Today we achieved the dream by Kirk Shillingford

  Made a function called missyElliott that takes a data structure, flips it, and reverses it.

Call for participation

• CFP: CONFLANG 2021

  CONFLANG is a new workshop on the design, the usage and the tooling of configuration languages.

• CFP: Haskell Love

  For the second time, the Haskell Love conference gathers all Haskell enthusiasts from around the globe!

• ihp: Link a running, working example of example app built in guide

• tablebot: 8ball plugin