{
  sources ? import ../npins,
  nixpkgs ? sources.nixpkgs,
  pkgs ? import nixpkgs { overlays = [ (import ../pkgs/overlay.nix) ]; },
}:
{
  basic = pkgs.callPackage ./basic.nix { };
  ingest = pkgs.callPackage ./ingest.nix { };
  signature = pkgs.callPackage ./signature.nix { };
}