Master Scala Rest APIs in 3 Simple Concepts: Illustrated Guide with Tapir, http4s, and Circe!
Briefly

A powerful Scala library for defining and documenting HTTP APIs in a type-safe and functional manner, with built-in support for generating Swagger UI documentation.
According to the 2023 Scala survey, it appears that the community is leaning towards the Typelevel ecosystem when it comes to building backend systems.
Read at Medium
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