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  <xs:element id="nxtt_JianboSunMember" name="JianboSunMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="nxtt_NanDingMember" name="NanDingMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="nxtt_HongliangLiuMember" name="HongliangLiuMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="nxtt_SingleReportableSegmentMember" name="SingleReportableSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="nxtt_StockIssuedDuringPeriodValueIssuanceOfCommonStocksForFractionalShareElimination" name="StockIssuedDuringPeriodValueIssuanceOfCommonStocksForFractionalShareElimination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="nxtt_StockIssuedDuringPeriodSharesIssuanceOfCommonStocksForFractionalShareElimination" name="StockIssuedDuringPeriodSharesIssuanceOfCommonStocksForFractionalShareElimination" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="nxtt_NumberOfWarrantsExercised" name="NumberOfWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="nxtt_StockIssuedDuringPeriodSharesCommonStockAndWarrants" name="StockIssuedDuringPeriodSharesCommonStockAndWarrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="nxtt_BasicandDilutedNetIncomePerShareDetailsTable" name="BasicandDilutedNetIncomePerShareDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="nxtt_ProceedsFromStockIssuancesForAThirdPartyInvestor" name="ProceedsFromStockIssuancesForAThirdPartyInvestor" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="nxtt_ExerciseOfPreFundWarrants" name="ExerciseOfPreFundWarrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="nxtt_DeferredTaxLiabilitiesFairValueGainOfBitcoin" name="DeferredTaxLiabilitiesFairValueGainOfBitcoin" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="nxtt_EmergingGrowthCompanyPolicyTextBlock" name="EmergingGrowthCompanyPolicyTextBlock" type="dtr:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="nxtt_RecentlyAdoptedAccountingStandardUpdatesPolicyTextBlock" name="RecentlyAdoptedAccountingStandardUpdatesPolicyTextBlock" type="dtr:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="nxtt_RelatedPartiesPolicyTextBlock" name="RelatedPartiesPolicyTextBlock" type="dtr:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
</xs:schema>
