I tried building a cross platform shared library. I still couldn't get GHC to generate the library with Haskell's Runtime (RTS) statically linked. Tried multiple AI models and nothing could make it work. Eventually gave up after a month.

Also there's no support for Android and iOS, atleast not without spending months in recompiling GHC with haskell.nix or other third party projects.

Eventually I switched to Rust. It's tooling is so mature that I can focus on developing than compiling GHC.

Despite these demerits, I love Haskell language and lazy eval. I wish I can use it one day.

Think problem is not in advanced features but in stability, integration and streamlining - compared to Rust/cargo.