There has never been anything stopping you from running binaries compiled from any language (including Haskell) on Lambdas. They run Linux after all. See server

There has never been anything stopping you from running binaries compiled from any language (including Haskell) on Lambdas. They run Linux after all. See serverless-haskell (link at bottom) for defining serverless Haskell functions. serverless-haskell also takes care of packaging shared objects depended upon alongside the binary. You will have to package any binary dependencies of your Haskell code yourself. The way it works is by generating a Node script which invokes the compiled binary with the payload as an environment variable, although this is encapsulated by an interface which you implement in the Haskell code. One thing to make sure is that your libraries and Haskell code are compiled on a system compatible with the Lambda execution environment. Documentation going further into ELF compatibility is available, but I can’t remember where. I remember using stack to have my Haskell code compile on an Ubuntu docker image which was compatible. https://github.com/seek-oss/serverless-haskell https://github.com/seek-oss/serverless-haskell