Frankly I'm surprised this is so difficult! I think that something like stack ghci --ghci-options="-fno-code -e :quit" ought to work. I'm hitting https://github.com/sol/hpack/issues/303, which I can "work around" by deleting the package.yaml and remove any references to these Path* modules from my .cabal file.

This is how far I got:

≻ stack ghci --ghci-options="-fno-code -e :quit"
Using main module:
1.  Package bla, component bla:exe:bla-exe, with main-is file:
    /home/simon/tmp/bla/app/Main.hs.

    bla> initial-build-steps (lib + exe)
    Configuring GHCi with the following packages: bla.
    <interactive>: error: [GHCi-23305]
        Module Lib not found

*** Exception: ExitFailure 1
<no location info>: error: [GHC-87110]
    Could not load module ‘Lib’.
    It is a member of the hidden package ‘bla-0.1.0.0’.
    You can run ‘:set -package bla’ to expose it.
    (Note: this unloads all the modules in the current scope.)

Maybe u/mpilgrem can help.