The pursuit of elastic, auto-scaling applications has led to complicated solutions like Serverless/FaaS, which promises pay-what-you-use costs to avoid idle usage. However, these solutions end up requiring more complexity, additional queues, storage, and glue code. The FLAME pattern offers a better way to elastically scale applications without the need for rewriting code or dealing with bespoke runtimes. FLAME treats the entire application as a lambda, allowing modular parts of the app code to be executed on short-lived infrastructure. The FLAME library, implemented in Elixir, provides an easy way to implement the FLAME pattern.
https://fly.io/blog/rethinking-serverless-with-flame/