nix-config/modules/nixos-modules/server/paperless/database.nix

{
  config,
  lib,
  ...
}: {
  config = lib.mkIf config.services.paperless.enable (lib.mkMerge [
    {
      host = {
        postgres = {
          enable = true;
        };
      };
    }
    (
      lib.mkIf config.host.postgres.enable {
        host = {
          postgres = {
            extraUsers = {
              ${config.services.paperless.database.user} = {
                isClient = true;
                createUser = true;
              };
            };
            extraDatabases = {
              ${config.services.paperless.database.user} = {
                name = config.services.paperless.database.user;
              };
            };
          };
        };
      }
    )
  ]);
}