Explore an open-source Serverless runtime built for cloud and on-premises environments, running on the BEAM with a polyglot programming model in this conference talk from Code BEAM Europe 2022. Discover how the BEAM and OTP are ideally suited for building a Serverless runtime. Learn about the realities of today's enterprise environments, the move towards Serverless architecture, and the open-source project eigr.io, which implements a runtime core based on Erlang/OTP and written in Elixir. Gain insights into eigr Functions, Service Proxy, and the concept of Inversion of State. The talk covers current challenges in Serverless development and concludes with a summary and Q&A session. Suitable for those interested in Serverless technologies, Distributed State Management, and polyglot programming models.