In a fit of evening productivity, I wrote two GHC proposals tonight: github.com/ghc-proposals/… on a new opt-in syntax for lists and tuples that avoids punning, and github.com/ghc-proposals/… on dropping support for -XNoPolyKinds. Video on -XNoPolyKinds due out on Thursday.

We can imagine an operator like `Tuple Int Bool Double` that reduces to `(Int, Bool, Double)` by inferring its arity. But can we do it for unboxed tuples, with their varying representations? Richard Eisenberg shows us how, with a couple of twists and turns: youtu.be/kGyiH5Nup-Y

Want to contribute to GHC? I came across a ticket today that should be nicely addressable by a newcomer. Hint: look in libraries/template-haskell/Language/Haskell/TH/Ppr.hs gitlab.haskell.org/ghc/ghc/-/issu…

Haskell weekly is such an important part of the Haskell ecosystem. Hard to believe it's run by a single, passionate person for such a long time. Thank you for all of your hard work Taylor Fausak and congratulations on hitting 300 issues!

Excited to make a new series of videos, about a Haskell program to find good Wordle guesses. Should be a good companion example to Haskell learners and an opportunity to learn about data representation choices and optimization for Haskell intermediates. youtu.be/2djr6ZxQ8VA

This is my favorite tweet in a while.

The Haskell Foundation is seeking a new Executive Director. Come join us and help shape the future of #Haskell! We're eager to get moving, and so the deadline is Feb 22. Spread the word! haskell.foundation/careers/ed.html

Pleased to share that the videos from the WITS workshop (co-organized with @agdakx and part of POPL 2025) are now online, including the keynote by @jonmsterling. Thanks to Apoorv Ingle, the tireless video chair! youtube.com/playlist?list=…

Alert: The GHC Steering Committee is contemplating a proposal that will cause some breakage. We want community feedback to inform whether we should proceed. Read all about it -- and share your thoughts -- at Discourse: discourse.haskell.org/t/feedback-req…

Apologies to my loyal fans, but this week got away from me -- no Tweag video. :( I'll make it up with 2 next week! :) One will use criterion to run microbenchmarks on the Wordle code. Don't worry if you haven't kept up on the (long) series -- it will be relevant regardless!

I'm writing a paper for Haskell Symposium, using Andres Löh's lhs2TeX for code formatting. My editor: VSCode. And, amazing to say, HLS is finding type errors in the middle of my paper. Very cool!

Simon Peyton Jones’ work to deliver outstanding computing education is recognised in the Queen’s Birthday Honours ahead of the Platinum Jubilee celebrations. 👏🎊 Read more: computingatschool.org.uk/news-and-blogs… #PlatinumJubilee #Congratulations #OBE

Back after a hiatus for Haskell Symposium submission (rejected 😢) and then holidays.

I'm excited to be part of a panel on careers in PL at PLMW at POPL 2025. But I'm weighing whether or not to stick around for all of POPL. I'd love to -- but I went 2 for 2 in 2022 for getting covid at conferences. Will there be e.g. a testing protocol? That would go a long way.