Bolero (http://fsbolero.io) is a functional, reactive web development library for F# developers targeting WebAssembly via Blazor. Next to building on a familiar Model-View-Update (MVU) architecture, Bolero also integrates a number of power features from WebSharper (http://websharper.com) to enable ultra-efficient, full-stack F# web applications. By plugging into the ever-growing Blazor ecosystem, you will enjoy developing most of your code base without JavaScript, and discover a new and promising alternative to building performant web applications. Come to this talk and learn everything you need to know about developing Bolero applications, and jumpstart your productivity with skills that will leave any Blazor developer impressed.

This is an experience talk from my work with NRK, the

Norwegian Broadcasting Company, Norway's public broadcaster.

Over the last 3-4 years we've taken the TV and radio streaming sites from a monolith to multiple

domain based services. We'll look at how we've transitioned the from a pure object oriented development team to a function friendly organzation, how gorwing the organization forced us to work with Conways law, as well as a deep dive into the bounded context of personalization.

Keeping track of user progress and favorite shows is the responsibility of Personalization domain, with high performance requirements and surprisingly

complex business rules. With new business rules and changing architecture, Personalization was in dire need of work. Combining FSharp and its typesystem and immutability with Orleans, an open source Virtual Actor platform for distributed high-scale computing applications, provided us with functional programming with OO principles in a fast and scalable platform. I'll show why we chose this path, the benefits we gained going from C# to F# and some of the lessons learned building on an actor model.