The ghc-experimental package (among others?) is missing

[figueroa628]

The package ghc-experimental is on Stackage; eg, on nightly-2024-12-25. But it isn't listed in any of the snapshot YAML files in this repository.

[alaendle]

Hi @figueroa628, that is because the version of ghc-experimental is defined by the used ghc version and therefore only indirectly by the snapshot (theoretically you could try to use a package set defined by one snapshot with another compiler version). This also affects multiple other packages - see: https://github.com/commercialhaskell/stackage-content/blob/33e028113aba1e806d2fe992f65ebe6dc6159830/stack/global-hints.yaml#L2040-L2083
Hope this is of any help for you.