Re: [Haskell-cafe] Is there an escape from MonadState+MonadIO+MonadError monad stack?

Not as well-known as it should be is the fact that GHC doesn't make much use of monad transformers. Have you taken a look at the sources? That might provide ideas on future ways of structuring your experiments.

That's interesting, thanks! Do you have any recommendations about which file to start reading? AFAIK, GHC is _huge_. Ömer