It fails

nixpkgs Python tools changed to no longer set PYTHONHOME for us
automatically.

overrides

They're not necessary on newly selected nixpkgs revision.

The layer above will have to make sure that it is.

This gives us the merged version of Ristretto support.

also, make it work.

This format for the file can be generated automatically using something like:

  nix-prefetch-github \
    --nix \
    --rev $(git rev-parse HEAD) \
    PrivateStorageio ZKAPAuthorizer > /path/to/zkapauthorizer-repo.nix

run in in a checkout of ZKAPAuthorizer

Let us pick Ristretto and supply a key if we like.

also if get-passes fails dump the tahoe logs

it needs the plugin too

only useful for debugging failed test runs

at least, maybe.  we don't actually get any zkaps from this as of now.