My friend made her own starter, then after she convinced me to get into it, she dried the starter into little flakes and shipped it to me. I pulled it out, rehy

My friend made her own starter, then after she convinced me to get into it, she dried the starter into little flakes and shipped it to me. I pulled it out, rehydrated it over the week and then lo I had sourdough! So cool you can dry that and then re-use it.