co-log: Composable Contravariant Comonadic Logging Component

Explore the key design decisions behind the Haskell logging library co-log in this 27-minute conference talk from YOW! 2019. Delve into how algebraic concepts like Semigroup, Monoid, Contravariant/Divisible/Decidable, and Comonads are combined to create a convenient and composable logging solution. Learn how this library is applied in commercial Haskell projects and gain insights into functional programming techniques. Discover the power of composable contravariant comonadic logging components and their practical applications in Haskell development.