Well-Typed #Haskell ecosystem activities report: June–August 2026

Well-Typed #Haskell ecosystem activities report: June–August 2026
What is category theory, and why does it matter for functional programming? Explained for #haskell programmers:
www.youtube.com/watch?v=Xr1g...
www.youtube.com/watch?v=mul9...
@abuseofnotation.mathstodon.xyz.ap.brid.gy at ZuriHac 2026
今回の一連の記事は、
以上の一般の場合の全単射を証明したものとなります。
#Haskell #FP
Tagless-Final 辞書と Free Monad インタプリタは米田の補題でつながる
bsky.app/profile/khib...
F X = Σᵢⁿ Aᵢ × (Rᵢ → X) を Container関手として読む
zenn.dev/khibino/arti...
Free Monad インタプリタは一段階分の解釈で決まる
zenn.dev/khibino/arti...
Search over algebraic graphs. ~ David Anekstein. anekstein.com/posts/2026-0... #Haskell #FunctionalProgramming
Liquid Haskell can prove your type class laws with an SMT solver – or could, until GHC 9 broke it. Juan Pablo Yamamoto spent #GSoC bringing it back. Here's how it went:
Tilia—a new formatter for Haskell https://lobste.rs/s/jbxpqz #haskell
Search over Algebraic Graphs https://lobste.rs/s/cw8fep #haskell
Sticking Functions Where They Donʼt Belong https://lobste.rs/s/y2n9bq #haskell
I haven't watched this yet, but it looks like an interesting analysis:
> Why Do Companies Stop Using Haskell? | Vaibhav Sagar | ZuriHac 2026
>
> OST – Ostschweizer Fachhochschule
> 2,835 views Sep 11, 2026 #Haskell #ZuriHac #functionalprogramming
>
> Why do companies stop using Haskell, even […]
This is getting complicated! #haskell #categorytheory
Why do companies stop using Haskell? https://lobste.rs/s/pwoxht #video #haskell #historical
How to avoid correctness space leaks on a lazy setting in Haskell (2023) https://lobste.rs/s/oclcr7 #haskell
Why Function Arguments Are Not Function Colors https://lobste.rs/s/tsfs3w #go #programming #haskell
New optics just dropped! #haskell #category-theory