deployed to a machine that has a web server (like Apache) or theoretically
The GHC API is notoriously fragile and bulky. The bulk of the work maintaining iHaskell involves keeping it in sync with GHC’s internals. Each GHC release means a package change to iHaskell even when the GHC changes don’t affect iHaskell at all. iHaskell also keeps stack configurations for older GHC versions. Relying on GHC’s internals in this way increases the maintenance burden of the project.
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the regex engine.
^ 162 N.E. 99 (N.Y. 1928). The British analog, which employs very similar reasoning, is Bourhill v. Young [1943] AC 92 (HL) (appeal taken from Scot.).