haskell-effectful/effectful

♊ higher-order, no-boilerplate monads

🌀 Safe, performant, user-friendly and lightweight Haskell standard library

Lenses, Folds, and Traversals - Join us on web.libera.chat #haskell-lens

Eff monad for cats - https://atnos-org.github.io/eff

Principled Functional Programming in Scala

High performance, streaming and concurrent functional programming in Haskell

Alternative Haskell Infrastructure for Nixpkgs

🍜 A tasty Haskell web and mobile framework

Interactive programs without callbacks or side-effects. Functional Reactive Programming (FRP) uses composable events and time-varying values to describe interactive systems as pure functions. Just like other pure functional code, functional reactive code is easier to get right on the first try, maintain, and reuse.