Gabriella439/Haskell-MMorph-Library

Monad morphisms

Gabriella439/Haskell-Lens-Tutorial-Library

The missing tutorial module for the lens library

haskell-hvr/hslogger

Logging framework for Haskell

ekmett/exceptions

mtl friendly exceptions

isovector/type-errors

:warning: tools for writing better type errors

elm/error-message-catalog

A catalog of broken Elm programs / data to improve error messages

iu-parfunc/lvars

The LVish Haskell library

isovector/thinking-with-types

📖 source material for Thinking with Types