Haskell Weekly issue 530 covers the Haskell ecosystem activities report for March–May 2026 from Well-Typed (covering GHC, Cabal, HLS work), a guide on creating statically-linked Haskell executables with Nix, an introduction to the pqi library aiming to decouple Haskell PostgreSQL drivers from libpq, an introductory post on record type inference, and a deep dive into representing sheaves in Haskell using category theory. Brief announcements include apecs-0.10.0 (ECS package), Fourmolu 0.20.0.0 formatter release with GHC 9.14 support, GHC 9.12.5-rc2, and new Hpack-Dhall and Stock packages.
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