warning: ignoring untrusted flake configuration setting 'extra-substituters'.
Pass '--accept-flake-config' to trust it
warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'.
Pass '--accept-flake-config' to trust it
evaluation warning:  nixfmt-rfc-style is now the default for the 'nixfmt' formatter.
                    'nixfmt-rfc-style' is deprecated and will be removed in the future.
this path will be fetched (0.00 MiB download, 0.00 MiB unpacked):
  /nix/store/yk9wnmayanbcwg8bsx5l962j4mz7sqq0-voyager-module-up-to-date