ZIO is a compelling effect type for working with the great Cats Effect ecosystem.

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John A De Goes

Many great libraries like http4s, FS2, and Doobie are built on the Cats Effect type classes, and effect libraries like ZIO and Monix provide instances of these type classes for their effect types. The Cats Effect library is helping many open source contributors economically support the whole functional Scala ecosystem.

ZIO & Cats Effect: A Match Made in Heaven