| Schedule of stock option activity |
| | | | | Weighted | | | Average | | | | | | | | | | Average | | | Remaining | | | Aggregated | | | | Options | | | Exercise | | | Contractual | | | Intrinsic | | | | Outstanding | | | Price | | | Life (Years) | | | Value | | Outstanding at June 30, 2020 | | | 1,000,667 | | | $ | 1.53 | | | | 8.5 | | | $ | - | | Granted | | | 1,092,222 | | | | 1.58 | | | | 10 | | | | - | | Forfeited | | | (3,889 | ) | | | 3.60 | | | | 10 | | | | - | | Outstanding at June 30, 2021 | | | 2,089,000 | | | $ | 1.55 | | | | 7.49 | | | $ | 9,689,865 | | Granted | | | 2,302,000 | | | | 4.36 | | | | 10 | | | | - | | Exercised | | | (111,112 | ) | | | 1.53 | | | | - | | | | - | | Outstanding at June 30, 2022 | | | 4,279,888 | | | $ | 3.05 | | | | 7.42 | | | $ | 4,919,182 | | Options exercisable at June 30, 2022 (vested) | | | 2,987,772 | | | $ | 2.43 | | | | 7.57 | | | $ | 7,977,353 | | Options exercisable at June 30, 2021 (vested) | | | 1,334,005 | | | $ | 1.55 | | | | 7.89 | | | $ | 6,189,783 | |
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