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  2. Feb 1

    I must highlight this great post about covariance and contravariance, and not just for . The fact that co/contravariance have an even/odd parity structure (where odd*odd = even, etc) is key to many confusions Ive had in the past in math/physics,etc

  3. Feb 1

    What started as a long, detailed post about manually installing an HIE-based development environment with is now a much shorter post about how to get from zero to a Haskell IDE in a matter of minutes, thanks to devcontainers!

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  4. 1 hour ago

    Taskell: command-line Kanban board/task management via

  5. Jan 27

    This is rare. Competing projects usually end up at each other's throats. Seeing the two major efforts to get IDE tooling (ie LSP backends for ) decide to work together and merge is something special. Using *ghcide* the last few months has been awesome. Can't wait!

  6. 1 hour ago
  7. Replying to

    The most interesting part is probably the highlighting itself because it's using GHC's lexer to guarantee correct syntax detection.

  8. Jan 30

    Introducing Mu for ! This release comes w/ full support for building gRPC microservices, shifts a lot of checks to compile-time schemas & readily integrates with well-known Haskell libraries for many tasks. More here: Thx & !

  9. Intro to Kaleidoscopes: Optics for aggregating data through Applicatives. ~ Chris Penner ().

  10. Feb 2

    + : Implement the . Who can do this? I will post the best solution tomorrow. There's only one rule to play this : Don't look at solutions proposed by others. Come up with your own! Shout-out to all participants.

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  11. 4 hours ago

    used dhall to throw together a simple personal dashboard for me to monitor all my projects :) inspired by a tweet by

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  12. Jan 30

    Thank you everyone for coming to London last night! Slides:

  13. Jan 27

    We're delighted to announce the release of our logging library `co-log` 💎📒 In the new version you can find: ✍️ Prettier time formatting with `chronos` by default ✍️ GHC-8.8.2 support ✍️ More idiomatic combinators ✍️ Windows CI And much more!

  14. Here is the solution for this challenge as proposed by ... feel free to ping me if you have any questions 👋

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  15. Jan 31

    Sorry community, I feel like I have failed you. My team will be discussing which tools they want to migrate to instead over the next few weeks, minus my highly opinionated position on it all 😢

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  16. Contribute to clash-lang/clash-compiler an open source project from QBayLogic

  17. SimSpace are HIRING! SimSpace is an early stage cyber security software company offering state-of-the art network emulation and modeling tools for realistic cyber testi...

  18. Learn about first-class functions in Haskell, from Get Programming with Haskell

  19. Jan 31
  20. Replying to

    This talk by covers the practical programming side of the last lecture of the "Programming with Categories" course which covered profunctor ends and coends. Watch this for the view of these constructions. Follow the shadow

  21. Dive deep into with Haskell in Depth our Deal of the Day.

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