eff

🚧 a work in progress effect system for Haskell 🚧

monad-control

Lift control operations, like exception catching, through monad transformers

fp-course

Functional Programming Course

mtl

The Monad Transformer Library

monad-classes

A more flexible mtl

effects

An implementation of "Freer Monads, More Extensible Effects".

first-class-instances

[MIRROR] First class instances in (GHC) Haskell

first-class-families

First-class type families

polysemy

higher-order, no-boilerplate monads

test-extensible

Haskell の extensible パッケージのテストリポジトリ

extensible

Extensible records, variants, structs, effects, tangles

freer-simple

A friendly effect system for Haskell

free-est

haskell-project-ideas

Free ideas, worth every penny

mix.hs

building rio package configuration using cont monad with extensible