Today I gave a talk at KotlinConf 2026 in Munich about “Opinionated Ktor Services”. In this talk, I shared my experience and opinions on how to build robust, maintainable, and scalable services using Ktor and the Kotlin ecosystem.

This blog post is an improved version of the transcription of the presentation I gave at KotlinConf 2023. It discusses the 10-year history of Arrow, all the way from the first commit to the current state of the library. It also discusses the future of Functional Programming in Kotlin, and the challenges OSS projects face.

Webinar with Anton Arhipov on functional microservices with Ktor and Kubernetes about zero-downtime deployments.

In the modern world we often need to make strong guarantees about how our applications terminate; Structured Concurrency gives us a powerful tool to reason about concurrency, parallel processes and how they relate to each other.

KotlinX’s Flow data type is extremely powerful, and offers an API that is quite familiar for functional programmers. This talk will showcase how we can leverage KotlinX Flow to describe powerful programs, and build pipelines to transform and manipulate data in an efficient streaming way.

Webinar with Anton Arhipov on functional microservices with Ktor and Arrow.