typelevel/cats

Lightweight, modular, and extensible library for functional programming.

typelevel/spire

Powerful new number types and numeric abstractions for Scala.

non/spire

Powerful new number types and numeric abstractions for Scala.

stew/dogs

data structures for pure functional programming in scala. see the completely incomplete documentation website:

non/alleycats

Cats instances and classes which are outlaws, miscreants, and ne'er-do-wells.

pjan/akka-d3

(Distributed) Domain Driven Design, with CQRS & ES, on top of Akka.

k1nd/pets

Helpers for cats & co.

edmundnoble/cats-mtl

cats transformer type classes.