Preheat the oven to 350°F (175°C).
In a mixing bowl, combine the sourdough starter and flour.
Add salt and olive oil, mixing until a dough forms.
Knead the dough on a floured surface for a few minutes.
Roll out the dough to about ¼ inch thickness.
Cut the rolled dough into desired shapes (e.g., squares or rectangles).
Place the cut crackers on a baking sheet lined with parchment paper.
Sprinkle herbs on top of the crackers.
Bake in the preheated oven for 15-20 minutes or until golden brown.
Let the crackers cool before serving.