Haskell Planetarium

Link aggregator of discussions about the Haskell programming language

Discourse

HLS: Could not find module
6 answers
Tue 2025/07/15
GHC LTS Releases — The Glasgow Haskell Compiler
3 answers
Tue 2025/07/15
Fork `hourglass`? As `sandtimer`?
3 answers
Tue 2025/07/15
[ANN] lazy-scope - ST-like IO Handle and lazy ByteString
6 answers
Tue 2025/07/15
Document the requirements and expectations of a repo under the haskell github organisation
3 answers
Tue 2025/07/15
Where did rts-ghc library disappear to?
1 answer
Tue 2025/07/15
Is Haskell supported on Windows ARM?
4 answers
Tue 2025/07/15
Dataframe 0.2.0.2
1 answer
Mon 2025/07/14
New packages effectful-postgresql and effectful-opaleye
1 answer
Sun 2025/07/13
`asn1-*` forked as `crypton-asn1-*`
5 answers
Sun 2025/07/13

Reddit

GHC LTS Releases — The Glasgow Haskell Compiler - Announcements
1 comment
Tue 2025/07/15
Wed, July 16 at 7pm Central: Shae Erisson, “Haskell Community, Past and Present”
Mon 2025/07/14
Advice on diagnosing HLS not working
9 comments
Mon 2025/07/14
Baking package version and Git commit hash in the Haskell executable
22 comments
Mon 2025/07/14
dataframe 0.2.0.2
10 comments
Sun 2025/07/13
Built an AI Chatbot (ChatGPT clone) in Haskell using Hyperbole and langchain-hs
2 comments
Sat 2025/07/12
What after basics of Mondads ?
31 comments
Sat 2025/07/12
Tweag is hiring for multiple Haskell positions
18 comments
Fri 2025/07/11
How do Haskell and Clojure Compare in 2025?
10 comments
Thu 2025/07/10
How much do you value mentorship when hiring someone?
10 comments
Thu 2025/07/10

Planet Haskell

Monday Morning Haskell: Binary Search in a 2D Matrix
Mon 2025/07/14
Tweag I/O: Publish all your crates everywhere all at once
Thu 2025/07/10
Well-Typed.Com: Developing an application from scratch (Haskell Unfolder #46)
Wed 2025/07/09
Haskell Interlude: 67: Alex McLean
Mon 2025/07/07
Monday Morning Haskell: Binary Search in Haskell and Rust
Mon 2025/07/07
GHC Developer Blog: GHC LTS Releases
Mon 2025/07/07
Tweag I/O: Bazel workshop made public
Thu 2025/07/03
Monday Morning Haskell: Buffer & Save with a Challenging Example
Mon 2025/06/30
Magnus Therning: Reading Redis responses
Sat 2025/06/28
Brent Yorgey: Competitive programming in Haskell: prefix sums
Fri 2025/06/27

The Haskell Café mailing list

GHC LTS Releases
Tue 2025/07/15
Combining RequiredTypeArguments and type class methods?
4 replies
Mon 2025/07/14
Correct parsers for bounded integral values
2 replies
Sun 2025/07/13
ZuriHac 2025 Videos Online
Wed 2025/07/09
Real-Time Intelligent Systems 2025
Mon 2025/07/07
POPL 2026 Last Call for Papers
Fri 2025/07/04
Fifth International Conference on Digital Data Processing (DDP 2025)
Fri 2025/07/04
ICFP/SPLASH 2025: call for volunteers
Thu 2025/07/03
Postdoctoral Researcher Position at the University of Tartu
Tue 2025/07/01
Intent to take over maintainership of cql and cql-io
Mon 2025/06/30

Stack Overflow

Using pattern-matching to identify 4 common elements in a list
4 answers
Thu 2025/07/10
Hackage google-oauth2 package override local google-oauth2 when using haskell.nix
1 answer
Wed 2025/07/09
Can I set the locale from within a Haskell program, so I can print unicode characters appropriately?
1 answer
Tue 2025/07/08
How does Haskell understand this function? Weird behavior
2 answers
Mon 2025/07/07
How to represent a potentially infinite list of computation as an algebraic datatype
1 answer
Mon 2025/07/07
Stack-style sandboxed Haskell/GHC builds without dependency pinning
1 answer
Mon 2025/07/07
Redundant pattern matching slowing down our Haskell program
1 answer
Mon 2025/07/07
How do I define recr using foldr in Haskell?
1 answer
Sat 2025/07/05
GHC.Record : Record data type may not be a data family
1 answer
Wed 2025/07/02
How to use `rename` in haskell extention for VSCode?
1 answer
Mon 2025/06/30

Code Review Stack Exchange

How to implement an AVL tree efficient enough in Haskell?
1 answer
Tue 2025/04/01
Pattern Finding In Lists of Strings (2d Char Array), Advent of Code Day 04 Solution
2 answers
Fri 2024/12/20
Value-level proofs of type-level membership and subset relations in Haskell
Fri 2024/12/06
HackerRank, Haskell simple "compression" algorithm
3 answers
Sun 2024/08/18
Scraping the calendar of some public libraries from their websites
1 answer
Sat 2024/08/03
Haskell 2-player TicTacToe terminal game
1 answer
Fri 2024/06/07
Parse 2D Cartesian coordinates and output their Polar form
1 answer
Mon 2024/05/13
Last Stone Weight Problem in Haskell Using `fold`
Fri 2024/03/29
Last Stone Weight Problem in Haskell using list `insert`
1 answer
Tue 2024/03/19
Haskell code optimization for short Pi approximator
1 answer
Sun 2023/10/29

Haskell Weekly

Issue 480 - 2025-07-10
Thu 2025/07/10
Issue 479 - 2025-07-03
Thu 2025/07/03
Issue 478 - 2025-06-26
Thu 2025/06/26
Issue 477 - 2025-06-19
Thu 2025/06/19
Issue 476 - 2025-06-12
Thu 2025/06/12
Issue 475 - 2025-06-05
Thu 2025/06/05
Issue 474 - 2025-05-29
Thu 2025/05/29
Issue 473 - 2025-05-22
Thu 2025/05/22
Issue 472 - 2025-05-15
Thu 2025/05/15
Issue 471 - 2025-05-08
Thu 2025/05/08