Some more derive(Trait) options

Rust newtype with guarantees 🇺🇦 🦀

NewTypes for Scala with no runtime overhead

Unboxed (multi-nested-)tagged + unboxed newtypes. Better and much friendlier alternative to AnyVals.

Nearly zero runtime object allocation powered by scalameta. Value class and Unboxed Tagged Type generation at compile-time.

derive newtype for diesel traits

Helpers for easily using failure::Error and others as return types in main() while still giving human-readable error messages.

explore kafka, spark, fs2 and pure functional programming in scala

Solutions to exercises from the book Haskell Programming

Sensible, performant primitives for writing semantic TypeScript code

A few extra tools

newtype and refinement (refined) type for Scala 3

Distinct Type Aliases for C#

Beautiful way to create new types for your Python classes!

Opaque type encoding for convenient new types, and boilerplate minimization of integration with 3rd party libraries like circe, http4s, doobie, skunk, etc.

Newtype, Generic Interface Deriving

Newtype macros for commonly reused types in Rust.

a type with 1 variant but convenient