input-output-hk/nix-tools

Translate Cabals Generic Package Description to a Nix expression

ekmett/either

the EitherT monad transformer

fpco/mezzohaskell

Community-driven book on intermediate Haskell

ekmett/tagged

phantom types

ekmett/contravariant

Haskell 98 contravariant functors

augustss/djinn

Generate Haskell code from a type

purescript/purescript-transformers

Monad and comonad transformers

haskell/primitive

This package provides various primitive memory-related operations.