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  <xsd:element abstract="true" id="sdev_statement-statement-note-2-summary-of-significant-accounting-policies-schedule-of-cash-cash-equivalents-restricted-cash-and-restricted-cash-equivalents-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-schedule-of-cash-cash-equivalents-restricted-cash-and-restricted-cash-equivalents-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-2-summary-of-significant-accounting-policies-schedule-of-earnings-per-share-basic-and-diluted-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-schedule-of-earnings-per-share-basic-and-diluted-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-2-summary-of-significant-accounting-policies-tables" name="statement-statement-note-2-summary-of-significant-accounting-policies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-3-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details" name="statement-statement-note-3-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-3-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-detailsAF860857-E8E8-4FB3-89F6-5CF114F66A31" name="statement-statement-note-3-fair-value-measurements-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-detailsAF860857-E8E8-4FB3-89F6-5CF114F66A31" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-3-fair-value-measurements-tables" name="statement-statement-note-3-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-4-prepaid-expenses-and-other-current-assets-summary-of-prepaid-expenses-and-other-current-assets-details" name="statement-statement-note-4-prepaid-expenses-and-other-current-assets-summary-of-prepaid-expenses-and-other-current-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-4-prepaid-expenses-and-other-current-assets-tables" name="statement-statement-note-4-prepaid-expenses-and-other-current-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-5-digital-assets-crypto-asset-activity-details" name="statement-statement-note-5-digital-assets-crypto-asset-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-5-digital-assets-crypto-asset-holding-details" name="statement-statement-note-5-digital-assets-crypto-asset-holding-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-5-digital-assets-tables" name="statement-statement-note-5-digital-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-6-accrued-liabilities-summary-of-accrued-liabilities-details" name="statement-statement-note-6-accrued-liabilities-summary-of-accrued-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-6-accrued-liabilities-tables" name="statement-statement-note-6-accrued-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-7-commitments-and-contingencies-lease-expense-details" name="statement-statement-note-7-commitments-and-contingencies-lease-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-7-commitments-and-contingencies-lease-expense-details2E24C2C2-3D8D-458C-B23C-F9B272D9DA57" name="statement-statement-note-7-commitments-and-contingencies-lease-expense-details2E24C2C2-3D8D-458C-B23C-F9B272D9DA57" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-7-commitments-and-contingencies-schedule-of-future-lease-payments-details" name="statement-statement-note-7-commitments-and-contingencies-schedule-of-future-lease-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-note-7-commitments-and-contingencies-tables" name="statement-statement-note-7-commitments-and-contingencies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="sdev_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
