nixos-config/system/thunar.nix

{ config, pkgs, inputs, ... }: {
  programs.thunar = {
    enable = true;
    plugins = with pkgs.xfce; [
      thunar-archive-plugin
      thunar-volman
    ];
  };
  # Mount, trash, and other functionalities
  services.gvfs.enable = true;
  # Thumbnail support for images
  services.tumbler.enable = true;

  environment.systemPackages = [
    (
      pkgs.writeTextFile {
        name = "thumbs";
        text = ''
          [Thumbnailer Entry]
          TryExec=unzip
          Exec=sh -c "${pkgs.unzip}/bin/unzip -p %i preview.png > %o"
          MimeType=application/x-krita;
        '';
        destination = "/share/thumbnailers/kra.thumbnailer";
      }
    )
  ];
}