From Exception Hell to Typed Bliss: Real-World Error Handling with Kotlin and Arrow by Jordi Pradel

From a channel Lumen includes in full: Lambda World is a functional-programming conference in Cádiz; its channel carries complete talks by language designers and practitioners on Haskell, Scala, OCaml, Rust, effects and type systems.

A 32-minute video from Lambda World's catalogue; the title names its topic.

Video by Lambda World, played through YouTube's embedded player.