anchor.diff:        package = mkOption {
           type = types.package;
           default = pkgs.mercurial;
  +        defaultText = literalExpression "pkgs.mercurial";
           description = ''
             Mercurial package for hg.sr.ht. This can help silence collisions.
           '';
  
positive.code:                 rev = "ff96a0fa5635770390b184ae74debea75c3fd534";
                  ref = "nixos-unstable";
              };
              image_from_nixpkgs = (import ("${pkgs.sourcehut.buildsrht}/lib/images/nixos/image.nix") {
                pkgs = (import pkgs_unstable {});
              });
            in
  
negative.code:       package = mkOption {
          type = types.package;
          default = pkgs.git;
          defaultText = literalExpression "pkgs.git";
          example = literalExpression "pkgs.gitFull";
          description = ''
            Git package for git.sr.ht. This can help silence collisions.
  