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Haskell programming language

@haskell.org
2.8K followers 150 following 1.2K posts

Committed to a welcoming, vibrant & flourishing #Haskell community! Here we talk about community updates, software engineering and the joy of programming. Find us on haskell.org and blog.haskell.org

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Haskell programming language @haskell.org · 23/08/2026
Way head of you :p
Screenshot of the post, quoted by us saying "Well-done!"
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Haskell programming language @haskell.org · 22/08/2026
BRILLIANT!
A mustachio'd man with a cigar exclaiming "BRILLIANT!"
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Haskell programming language @haskell.org · 19/08/2026
Does *your* runtime system embed the Eye of Sauron? Yeah, I didn't think so. 💅 #Haskell
Description of selector thunks in the GHC runtime system, and suddenly the sentence "the garbage collector sees all, knows all."
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Haskell programming language @haskell.org · 11/08/2026
> claims to love explicitness > en.cppreference.com/c/language/c...
Thinking Dr. Mario
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Haskell programming language @haskell.org · 28/07/2026
I think whatever website you're getting this jargon from is hurting you.
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Haskell programming language @haskell.org · 13/07/2026
"I guess bro" meme with Jonah Hill's character from War Dogs
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Haskell programming language @haskell.org · 12/07/2026
Every day we see crazy things on this website.
Very perplex Dr. Mario
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Haskell programming language @haskell.org · 07/07/2026
From the Haskell perspective, it's "Algebraic Laws in the streets, Linux Programming Interface in the sheets" via @refinement.systems
A diagram representing the layers of a computer with "Hardware", "Operating system" and "Application Programs", where between Hardware and Operating system are distorted and terrible faces (awful interface), and between Operating system and Application programs is a beautiful interface with drawings of a peacock, a castle, a monarch and tulips
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Haskell programming language @haskell.org · 19/06/2026
Yeah Haskell is proud of its UNIX roots! The UNIX roots:
The documentation for the head function in the Haskell prelude:

Warning: This is a partial function, it throws an error on empty lists. Use pattern matching, uncons or listToMaybe instead. Consider refactoring to use Data.List.NonEmpty.

O(1). Extract the first element of a list, which must be non-empty.
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Haskell programming language @haskell.org · 16/06/2026
One more thing in common with Haskell ghc.gitlab.haskell.org/ghc/doc/user.... Not saying you should switch but hey…
Bang Patterns
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Haskell programming language @haskell.org · 06/06/2026
#ZuriHac day 1 is over! Send us your pictures of the event, and happy #Haskell hacking. :)
A crowd on the lawn in front of the Zurich lake
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Haskell programming language @haskell.org · 06/06/2026
Farhad Meta is teaching #ZuriHac attendees about Swiss recycling! Happy #Haskell Hackathon!
A crowd in an auditorium listening to the speaker
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Haskell programming language @haskell.org · 02/06/2026
The past years have seen horrendous attacks towards trans people. We have a duty to protect the most vulnerable members of our communities. There is no Haskell without the trans people who have shaped it through the years. This June is a month of celebrations, but the struggle continues. ✊🏳️‍⚧️λ
The trans flag with a greek lowecase lambda letter in black on it.
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Haskell programming language @haskell.org · 29/04/2026
What could that be about indeed 🤪
"the owners of the imaginary friends want to sell back intelligence as a service to a class of de-skilled tech workers and/or the managerial class"
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Haskell programming language @haskell.org · 12/04/2026
A man with a stubble wearing a shirt with "Sickos" written on it is lurking behind a window and say "Yes… Ha Ha Ha YES!"
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Haskell programming language @haskell.org · 11/03/2026
A baffled cat
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Haskell programming language @haskell.org · 27/02/2026
Brillo 2.0 - Production ready 2D graphics #Haskell #Graphics discourse.haskell.org/t/brillo-2-0...
A collage of several examples of 2D Graphics programming, including a version of the 2048 game, a chess board, pacman, snake, tetris and a tic-tac-toe
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Haskell programming language @haskell.org · 04/01/2026
The white rabbit of Alice in Wonderland pointing to a pocket watch, signalling that the clock is ticking…
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Haskell programming language @haskell.org · 02/12/2025
For the glory of Satan of course!
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Haskell programming language @haskell.org · 14/09/2025
3D printing at #MuniHac! #Haskell
Various 3D-printed dice of different sizes, pink or black, with a Haskell logo on them. Articulated keyrings are displayed as well
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Haskell programming language @haskell.org · 12/09/2025
All the cool kids are doing Haskell these days!
"Haskell" written on a whiteboard with the S drawn as The Cool S
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Haskell programming language @haskell.org · 12/09/2025
#MuniHac keynote "A modern step-through debugger for #Haskell" by Rodrigo Mesquita from Well-Typed munihac.de/2025.html#Ro...
A room with 60 people looking at the presenter
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Haskell programming language @haskell.org · 12/09/2025
#MuniHac 2025 is on! #Haskell
A table with a blue rubber duck labelled TNG, and MuniHac stickers, with the project presentations in the background
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Haskell programming language @haskell.org · 11/09/2025
Being a social media admin on Blue Sky dot App
Jennifer Coolidge addressing someone, with text saying "These fujoshis, they're trying to ship me"
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Haskell programming language @haskell.org · 21/08/2025
The Green Goblin mask hanging on a bin container, tempting.
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Haskell programming language @haskell.org · 16/08/2025
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Haskell programming language @haskell.org · 16/08/2025
yep
A heart-shaped locket opening to reveal the message "Haskell my beloved"
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Haskell programming language @haskell.org · 13/08/2025
I hope none of y'all are spending money on the funny anime horse game. Do not allow yourself to become a gambling addict.
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Haskell programming language @haskell.org · 09/08/2025
Be Not Afraid www.haskell.org?uwu=true
The haskell.org frontpage with an alternative logo that resembles the style used by the VTubing community.
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Haskell programming language @haskell.org · 04/08/2025
Courtesy of @lexa.qexat.com
How can I make this about yuri?
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Haskell programming language @haskell.org · 04/07/2025
Summer is for Haskelling outside with fresh air and cicadas
A laptop on a balcony table with trees in the background, during sunset.
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Haskell programming language @haskell.org · 30/06/2025
“They are enriching microfunctors” – Colin Powell, probably
A picture of then-US secretary of state Colin Powell falsely claiming that Irak has neurotoxin agents, justifying the invasion of Iraq. Superimposed text reads "They are enriching microfunctors"
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Haskell programming language @haskell.org · 24/06/2025
A photo of a dog onto which are photoshopped human eyes and mouth. The dog is shown to squint first, then open its eyes in horror at what it saw.
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Haskell programming language @haskell.org · 22/06/2025
#Haskell Language Server is pretty good job at rendering documentation! hackage.haskell.org/package/base...
A screenshot of a semi-transparent pop-up window in Neovim that shows the rendered documentation for the String type in Haskell, with proper rendering of Unicode box characters that show the memory layout of a linked list.
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Haskell programming language @haskell.org · 18/06/2025
A picture of Jay-Z with his hand over his mouth, visibly in shock
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Haskell programming language @haskell.org · 12/06/2025
The @lambdadays.bsky.social boat is the heart of the party!
A red lanyard on an aluminium bar with "Lambda Days" written on it
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Haskell programming language @haskell.org · 07/06/2025
The haters are sweating, as almost every attendant of the "Haskell in Industry" panel discussion is a #Haskell professional
"Avoiding Success at all Costs: A panel discussion on Haskell in Industry"
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Haskell programming language @haskell.org · 03/06/2025
In this Pride Month, let us remember that #FunctionalProgramming has the privilege and honour to share our beloved λ with the Lesbian community. Let's go Lesbians!
A lower-case greek lambda in the colours of the lesbian pride flag
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Haskell programming language @haskell.org · 03/06/2025
The mask of the Green Goblin saying "Coward! We have a new world to conquer. You make me sick"
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Haskell programming language @haskell.org · 24/03/2025
GHC 9.6.7 is now available! discourse.haskell.org/t/ghc-9-6-7-... #Haskell
GHC 9.6.7 available
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Haskell programming language @haskell.org · 06/01/2025
GHC 9.12 & Cabal 3.14 released! Read the announcement at blog.haskell.org/ghc-9-12-cab... #Haskell
GHC 9.12 & Cabal 3.14
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Haskell programming language @haskell.org · 29/11/2024
Happy Friday
A logo of a "Prohibited" sign in green rather than red. In the border there is written "We do not test on animals, we test in production". A drawing of a rabbit with a heart next to it is in the upper part of the logo, a drawing of a server bay in flames in the bottom part.
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Haskell programming language @haskell.org · 22/11/2024
🥸👍
A man with an intense look in his eyes, handlebar moustache and a cigar, with superimposed text reading "Brilliant!"
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