The stack runghc and stack runhaskell commands

stack runghc [-- ARGUMENT(S) (e.g. stack runghc -- X.hs)]
             [--[no-]ghc-package-path] [--[no-]stack-exe] [--package PACKAGE]
             [--rts-options RTSFLAG] [--cwd DIR]

stack runhaskell has the same effect as stack runghc. stack runghc has the same effect as, and is provided as a shorthand for, stack exec runghc, with the exception of the --package option.

Pass the option --package <package> to add the initial GHC argument -package-id=<unit_id>, where <unit_id> is the unit ID of the specified package in the installed package database. The option can be specified multiple times.