TOPIC Simon Vergauwen is a Senior Software Engineer and Trainer at 47 Degrees, responsible for working on the core Arrow infrastructure and design. He is leading efforts to include composable optics in Arrow and revamping the Arrow Fx library to support custom error handling, safe resource management, and many modern features expected in today’s functional programming ecosystem in Kotlin.

Raúl Raja is a Co-founder and CTO of 47 Degrees and one of the core maintainers of the Arrow open-source …