Start by preheating the oven at 180ºC or 350ºF.
Now to a bowl, the oat, and whole rye flour.
Now the seeds: add the pumpkin seeds, sunflower seeds, 4ground flax seeds, and sesame seeds.
Mix everything and add the olive oil, salt, oregano, dried basil, and garlic powder.
Add the warm water and combine everything, once again without over-mixing.
Spread the dough in the baking tray previously prepped with oil and flour, or on top of a parchment paper. Spread mixture out, pressing until the sheet is less than 1/4 inch (or 0,5 cm) thick and make cuts with a knife so they break even when cooked.
Put them in the oven to cook for 30 to 35 minutes or until they dry and get golden, stopping once at the halfway point to turn the crackers over.
Take them out of the oven and let them cool down.
You can have them with your favorite spreading or eat them as they are.