Rinse chickpeas under cool water. Pick up handfuls of chickpeas and rub them together with your hands under the water to wash chickpeas. Place chickpeas in a large stew pot, cover with water and add baking soda; swirl chickpeas and water to distribute baking soda. Leave to soak for 8 hours or overnight.

The next day, pour chickpeas through a strainer and rinse well under cold running water, eliminating any skins or discolored chickpeas; set aside.

Grate onion, celery, zucchini, and carrot on the large teeth of a cheese grater, This step is very important as grated vegetables give a different flavor than diced. 

Heat 2 tablespoons olive oil in the stew pot over medium heat, and sauté grated vegetables for 1 minute. Mix in sage, rosemary, and thyme and sauté, stirring occasionally, until onions are soft and translucent, about 5 minutes.

Add 3 cups broth, all the chickpeas, and tomatoes. Bring to a boil, reduce heat, and simmer until chickpeas are tender, about 1 hour. Stir in pasta. Add more broth only as needed to achieve a thick, stew-like consistency.

Cook until pasta is tender with a bite, 8 to 10 minutes. Taste and season with salt and black pepper. Remove from heat and divide amongst serving bowls. Top each bowl with minced cayenne pepper and a drizzle of extra-virgin olive oil.