sourdough starters - Robuta Search

https://www.bu.edu/alumni/2020/05/28/streambu-full-body-workouts-job-searching-advice-and-sourdough-starters/

https://www.thetakeout.com/1840752/what-best-flour-fast-sourdough-starter/

Using rye flour for your sourdough bread starter can speed the process up because rye flour ferments faster than wheat flour.