Appears they have financed via convertible debt and a small amount from the ppp. as reported in the filings. For example, the most recent 10-k states:
“For the year ended December 31, 2021, cash provided by financing activities was approximately $535,905, from the issuance of convertible debt of $500,000 and $35,905 of proceeds from the payroll protection program.”
“For the year ended December 31, 2020, cash provided by financing activities was approximately $530,492, from the issuance of convertible debt of $500,000 and $30,492 of proceeds from the payroll protection program.”