Comment by agentultra

There's a video game on steam you can buy with real dollars built in Haskell.

I work full-time writing Haskell. Fintech stuff. No shiny research going on here.

I've written some libraries and programs on my stream in Haskell. One is a client library for Postgres' streaming logical replication protocol. I've written a couple of games. Working on learning how to do wave function collapse.

Believe it or not, functional programmers -- even ones writing Haskell -- often think about and deliver software for "real world," use.