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pkgs/development/haskell-modules/replacements-by-name/README.md
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# haskell-modules/replacements-by-name

This directory is scanned, and all `.nix` files are called in order to replace their respective packages in the `haskellPackages` set.
They're loaded after `hackage-packages.nix` but before any overrides are applied.
See [non-hackage-packages.nix](../non-hackage-packages.nix) for the implementation.

This is used for selective backports of updates, as the hackage package set won't be updated in its entirety.

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Title: Haskell Packages Replacements by Name
Summary
This directory contains `.nix` files that are used to selectively replace packages in the `haskellPackages` set. These replacements are loaded after `hackage-packages.nix` but before any overrides, enabling backports of updates without updating the entire Hackage package set. The implementation details can be found in `non-hackage-packages.nix`.