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{ config, pkgs, ... }:
with pkgs.lib;
{
###### interface
options = {
hardware.sane.enable = mkOption {
default = false;
description = "Enable support for SANE scanners.";
};
hardware.sane.snapshot = mkOption {
default = false;
description = "Use a development snapshot of SANE scanner drivers.";
};
};
###### implementation
config = let pkg = if config.hardware.sane.snapshot
then pkgs.saneBackendsGit
else pkgs.saneBackends;
in mkIf config.hardware.sane.enable {
environment.systemPackages = [ pkg ];
services.udev.packages = [ pkg ];
users.extraGroups = singleton {
name = "scanner";
gid = config.ids.gids.scanner;
};
};
}
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