nixos-config/home/gpg.nix

{ config, ... }: {
  services.gpg-agent = {
    enable = true;
    enableExtraSocket = true;
    pinentryFlavor = "gnome3";
  };

  programs.gpg = {
    enable = true;
    homedir = "${config.xdg.dataHome}/gnupg";
  };
}