One minor point: the actual URL for the most recent cabal.config is http://www.stackage.org/alias/fpcomplete/unstable-ghc78-exclusive/cabal.config

> However, you may eventually need packages not on Stackage, at which point you will need to use the inclusive snapshot.

Or be a hero and [contribute the package (scroll down to "Steps to Contribute")](http://www.stackage.org/) .

&gt; However, you may eventually need packages not on Stackage, at which point you will need to use the inclusive snapshot.

Or be a hero and [contribute the package (scroll down to "Steps to Contribute")](http://www.stackage.org/) .

Installing application dependencies using Stackage, sandboxes, and freezing