No package sane-drivers.epjitsu in packages?

1

Trying to install ScanSnap scanner, I am a bit confused in one option

hardware.sane.drivers.scanSnap.package

The default option is:

pkgs.sane-drivers.epjitsu

When I searched the packages, there is no package with that name. Can somebody please explain?

2

It is there, but it has unfree license, so disallowed by default and that’s why you might’ve missed it.

EDIT: full message can be helpful

error: Package ‘scansnap-firmware’ in pkgs/build-support/fetchurl/default.nix:141 has an unfree license (‘unfree’), refusing to evaluate.

       a) To temporarily allow unfree packages, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_UNFREE=1

        Note: For `nix shell`, `nix build`, `nix develop` or any other Nix 2.4+
        (Flake) command, `--impure` must be passed in order to read this
        environment variable.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowUnfree = true; }
       in configuration.nix to override this.

       Alternatively you can configure a predicate to allow specific packages:
         { nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
             "scansnap-firmware"
           ];
         }

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowUnfree = true; }
       to ~/.config/nixpkgs/config.nix.
3

I meant in https://search.nixos.org/packages.

4

IIRC unfree packages aren’t there either.

5

AFAIK they are:
[NixOS Search]

6

I see missing recurseIntoAttrs for sane-drivers so I’d think that would cause this. (some attributes also have a manual exception just for this search/listing IIRC)