Haskell Concurrency: Escape from Thread Hell

This article recounts the author's journey from embedded systems development in C/C++/Rust to Haskell, highlighting Haskell's advantages in concurrent programming. Haskell uses green threads and event-driven IO, avoiding the complexities of traditional threading models. Through the `async` package and STM (Software Transactional Memory), Haskell offers a cleaner and safer approach to concurrent tasks. Functions like `concurrently`, `race`, and `mapConcurrently`, along with data structures such as `TVar` and `TBQueue`, simplify concurrent operations and prevent common concurrency issues like deadlocks and race conditions.