Wording when a package doesn't specify meta.platforms is misleading.

[iFreilicht]

When opening a package that doesn't specify meta.platforms, the message is simply "This package is not available on any platform."

This is somewhat misleading, for two reasons.

1. A user can try to build the package on any platform, even without setting NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1
2. For x86_64-linux, the package will even be cached in hydra, so it's pretty much guaranteed to work.

My optimal solution for this would be to communicate both these caveats, maybe by showing x86_64-linux as a supported platform, with an additional disclaimer that the user can try installing the package on any other platform as well, but that it's not guaranteed to work.

Alternatively, the wording could be changed to "This package does not list any supported platforms.", or it might just show x86_64-linux as supported, nothing else.

[lolbinarycat]

relevant context from Lily Foster in the matrix chatroom:

it looks like the relevant line to change is

nixos-search/frontend/src/Page/Packages.elm

Line 493 in a740e60

[ p [] [ text "This package is not available on any platform." ] ]