The short version:

• Import UnliftIO or UnliftIO.Exception
• Do not import Control.Exception
• Done

Long version:

• Slides: https://www.snoyman.com/reveal/async-exception-handling
• Blog post: https://www.fpcomplete.com/blog/2018/04/async-exception-handling-haskell

Further reading:

• UnliftIO.Exception
• safe-exceptions package
• Exceptions best practices (highly opinionated)

• Implement finally and onException using functions from Control.Exception