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  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://fasb.org/srt-types/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/sic/2025" schemaLocation="https://xbrl.sec.gov/sic/2025/sic-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/cyd-af/2025" schemaLocation="https://xbrl.sec.gov/cyd/2025/cyd-af-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd-sub/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-sub-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei-sub/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-sub-2025.xsd"/>
  <xs:element name="ScheduleOfOrdinarySharesOutstandingAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfOrdinarySharesOutstandingAbstract"/>
  <xs:element name="ScheduleOfChangesInTheEstimatedFairValueOfTheFinancialInstrumentsUsingSignificantLevel3InputsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfChangesInTheEstimatedFairValueOfTheFinancialInstrumentsUsingSignificantLevel3InputsAbstract"/>
  <xs:element name="ScheduleOfEstimatedTheFairValueOfBridgePackageContingentWarrantsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfEstimatedTheFairValueOfBridgePackageContingentWarrantsAbstract"/>
  <xs:element name="ScheduleOfSignificantAssumptionsUsedInTheValuationOfTheLiabilityClassifiedWarrantsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfSignificantAssumptionsUsedInTheValuationOfTheLiabilityClassifiedWarrantsAbstract"/>
  <xs:element name="ScheduleOfWarrantLiabilitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfWarrantLiabilitiesAbstract"/>
  <xs:element name="ScheduleOfBasicAndDilutedNetIncomeLossPerShareAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfBasicAndDilutedNetIncomeLossPerShareAbstract"/>
  <xs:element name="ScheduleOfDeferredTaxAssetsAndLiabilitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfDeferredTaxAssetsAndLiabilitiesAbstract"/>
  <xs:element name="WeightedAverageEffectOfPotentiallyDilutiveSecuritiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_WeightedAverageEffectOfPotentiallyDilutiveSecuritiesAbstract"/>
  <xs:element name="NontaxableOrNondeductibleItemsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_NontaxableOrNondeductibleItemsAbstract"/>
  <xs:element name="SharesettledContingentLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_SharesettledContingentLiability"/>
  <xs:element name="ChangeInFairValueShareSettledContingentLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ChangeInFairValueShareSettledContingentLiability"/>
  <xs:element name="FairValueOfSharesettledContingentLiabilityOverAdditionalPaidinCapitalToAccumulatedDeficit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_FairValueOfSharesettledContingentLiabilityOverAdditionalPaidinCapitalToAccumulatedDeficit"/>
  <xs:element name="ConversionOfBridgeLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConversionOfBridgeLoans"/>
  <xs:element name="ConvertedOrdinaryShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConvertedOrdinaryShares"/>
  <xs:element name="StockIssuedDuringPeriodValueContingentlyVestedSponsorOrdinaryShares" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_StockIssuedDuringPeriodValueContingentlyVestedSponsorOrdinaryShares"/>
  <xs:element name="StockIssuedDuringPeriodSharesContingentlyVestedSponsorOrdinaryShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_StockIssuedDuringPeriodSharesContingentlyVestedSponsorOrdinaryShares"/>
  <xs:element name="ChangeInFairValueOfSharesettledContingentLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ChangeInFairValueOfSharesettledContingentLiability"/>
  <xs:element name="RemeasurementOfBridgeLoan" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_RemeasurementOfBridgeLoan"/>
  <xs:element name="ProceedsFromPIPEFinancing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ProceedsFromPIPEFinancing"/>
  <xs:element name="InitialValueOfWarrantLiabilitiesIssuedInConnectionWithBridgeLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_InitialValueOfWarrantLiabilitiesIssuedInConnectionWithBridgeLoans"/>
  <xs:element name="NonCashActivitiesConversionOfBridgeLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_NonCashActivitiesConversionOfBridgeLoans"/>
  <xs:element name="ReclassificationOfExcessOfFairValueOfSharesettledContingentLiabilityOverAdditionalPaidin" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ReclassificationOfExcessOfFairValueOfSharesettledContingentLiabilityOverAdditionalPaidin"/>
  <xs:element name="IssuanceOfSharesettledContingentLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_IssuanceOfSharesettledContingentLiability"/>
  <xs:element name="ConversionOfSharesettledContingentLiabilityIntoOrdinarySharesUponMilestoneAchievement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConversionOfSharesettledContingentLiabilityIntoOrdinarySharesUponMilestoneAchievement"/>
  <xs:element name="IssuanceOfOrdinarySharesAndAdvisorWarrantInExchangeForServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_IssuanceOfOrdinarySharesAndAdvisorWarrantInExchangeForServices"/>
  <xs:element name="WarrantsTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_WarrantsTextBlock"/>
  <xs:element name="OtherIncomeRelatedPartyPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OtherIncomeRelatedPartyPolicyTextBlock"/>
  <xs:element name="PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock"/>
  <xs:element name="ShareSettledContingentLiabilityPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ShareSettledContingentLiabilityPolicyTextBlock"/>
  <xs:element name="ConvertiblePreferredSharesPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConvertiblePreferredSharesPolicyTextBlock"/>
  <xs:element name="EmployeeAndDirectorAwardsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_EmployeeAndDirectorAwardsPolicyTextBlock"/>
  <xs:element name="NonemployeeAwardsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_NonemployeeAwardsPolicyTextBlock"/>
  <xs:element name="RelatedPartyTransactionsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_RelatedPartyTransactionsPolicyTextBlock"/>
  <xs:element name="EmergingGrowthCompanyStatusPoliciesPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_EmergingGrowthCompanyStatusPoliciesPolicyTextBlock"/>
  <xs:element name="RecentlyAdoptedAccountingPronouncementsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_RecentlyAdoptedAccountingPronouncementsPolicyTextBlock"/>
  <xs:element name="ScheduleOfShareBasedPaymentAwardOtherThanOptionsValuationAssumptionsTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfShareBasedPaymentAwardOtherThanOptionsValuationAssumptionsTableTextBlock"/>
  <xs:element name="BusinessCombinationScheduleofOrdinarySharesOutstandingDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_BusinessCombinationScheduleofOrdinarySharesOutstandingDetailsTable"/>
  <xs:element name="PrepaidValueAddedTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_PrepaidValueAddedTax"/>
  <xs:element name="AdvisoryFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_AdvisoryFees"/>
  <xs:element name="PrepaidTechnicalConsultancy" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_PrepaidTechnicalConsultancy"/>
  <xs:element name="PrepaidMembershipFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_PrepaidMembershipFees"/>
  <xs:element name="TechnicalConsultancy" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_TechnicalConsultancy"/>
  <xs:element name="CorporateAndRegionalTaxesPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_CorporateAndRegionalTaxesPayable"/>
  <xs:element name="GainRecognizedInEarningsDueToChangeOfFairValueNetOfForeignCurrencyExchangeImpact" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_GainRecognizedInEarningsDueToChangeOfFairValueNetOfForeignCurrencyExchangeImpact"/>
  <xs:element name="FairValueMeasurementsScheduleofEstimatedtheFairValueofBridgePackageContingentWarrantsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_FairValueMeasurementsScheduleofEstimatedtheFairValueofBridgePackageContingentWarrantsDetailsTable"/>
  <xs:element name="FairValueMeasurementsScheduleofSignificantAssumptionsusedintheValuationoftheLiabilityClassifiedWarrantsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_FairValueMeasurementsScheduleofSignificantAssumptionsusedintheValuationoftheLiabilityClassifiedWarrantsDetailsTable"/>
  <xs:element name="WarrantLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_WarrantLiabilities"/>
  <xs:element name="OrganizationDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_OrganizationDetailsTable"/>
  <xs:element name="PowerGenerationCapacity" type="xbrli:pureItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PowerGenerationCapacity"/>
  <xs:element name="BusinessCombinationDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_BusinessCombinationDetailsTable"/>
  <xs:element name="WarrantsExercisablePerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_WarrantsExercisablePerShare"/>
  <xs:element name="NumberOfWarrantsConsistOfPIPEShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_NumberOfWarrantsConsistOfPIPEShares"/>
  <xs:element name="WarrantExercisableMaturityTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_WarrantExercisableMaturityTerm"/>
  <xs:element name="ConversionOfTheGSRIIIShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConversionOfTheGSRIIIShares"/>
  <xs:element name="TerraOrdinaryShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_TerraOrdinaryShares"/>
  <xs:element name="CashSuccessFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_CashSuccessFee"/>
  <xs:element name="WarrantExercisable" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_WarrantExercisable"/>
  <xs:element name="ConvertiblePreferredShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConvertiblePreferredShares"/>
  <xs:element name="ClassOfWarrantOrRightWarrantsOrRightsExercisable" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ClassOfWarrantOrRightWarrantsOrRightsExercisable"/>
  <xs:element name="NetProceedsFromBusinessCombinationAndPIPEFinancing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_NetProceedsFromBusinessCombinationAndPIPEFinancing"/>
  <xs:element name="VestingSponsorSharesOutstanding" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_VestingSponsorSharesOutstanding"/>
  <xs:element name="VestingSponsorShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_VestingSponsorShares"/>
  <xs:element name="SummaryofSignificantAccountingPoliciesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_SummaryofSignificantAccountingPoliciesDetailsTable"/>
  <xs:element name="PercentageOfIncomeTaxThreshold" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PercentageOfIncomeTaxThreshold"/>
  <xs:element name="RelatedPartyTransactionsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_RelatedPartyTransactionsDetailsTable"/>
  <xs:element name="ExtraordinaryBonus" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ExtraordinaryBonus"/>
  <xs:element name="ReimbursableExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ReimbursableExpenses"/>
  <xs:element name="ConsultancyServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConsultancyServices"/>
  <xs:element name="LoanAgreementFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_LoanAgreementFees"/>
  <xs:element name="RentExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_RentExpenses"/>
  <xs:element name="MonthlyFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_MonthlyFees"/>
  <xs:element name="PercentageOfLeaseFee" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PercentageOfLeaseFee"/>
  <xs:element name="RelatedPartyTransactionExpenseForTechnoeconomicAnalysis" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_RelatedPartyTransactionExpenseForTechnoeconomicAnalysis"/>
  <xs:element name="BridgeLoansDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_BridgeLoansDetailsTable"/>
  <xs:element name="AmountOfTheLoanToThirdParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_AmountOfTheLoanToThirdParties"/>
  <xs:element name="AmountOfForeignExchangeDifferences" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_AmountOfForeignExchangeDifferences"/>
  <xs:element name="CoveragePercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_CoveragePercentage"/>
  <xs:element name="PercentageOfCommissionOnFunds" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PercentageOfCommissionOnFunds"/>
  <xs:element name="PercentageOfPaidInCapitalInterest" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_PercentageOfPaidInCapitalInterest"/>
  <xs:element name="WarrantsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_WarrantsDetailsTable"/>
  <xs:element name="ShareholdersDeficitDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_ShareholdersDeficitDetailsTable"/>
  <xs:element name="NumberOfPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_NumberOfPercentage"/>
  <xs:element name="StockIssuedDuringPeriodValueContingentlyVestedSponsorOrdinaryShare" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_StockIssuedDuringPeriodValueContingentlyVestedSponsorOrdinaryShare"/>
  <xs:element name="RemainingOfPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_RemainingOfPercentage"/>
  <xs:element name="StockIssuedDuringPeriodValueVestedOrdinaryShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_StockIssuedDuringPeriodValueVestedOrdinaryShares"/>
  <xs:element name="StockIssuedDuringPeriodValueUnvestedOrdinaryShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_StockIssuedDuringPeriodValueUnvestedOrdinaryShares"/>
  <xs:element name="AggregateNominalValueOfPreferredSharesPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_AggregateNominalValueOfPreferredSharesPercentage"/>
  <xs:element name="ConvertiblePreferredSharesLegallyOutstanding" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConvertiblePreferredSharesLegallyOutstanding"/>
  <xs:element name="ConvertiblePreferredStockRemainingSharesIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConvertiblePreferredStockRemainingSharesIssued"/>
  <xs:element name="CommitmentsandContingenciesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_CommitmentsandContingenciesDetailsTable"/>
  <xs:element name="CashSucessFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_CashSucessFee"/>
  <xs:element name="MilestoneFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_MilestoneFee"/>
  <xs:element name="RetainerFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_RetainerFee"/>
  <xs:element name="LOISignatureFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_LOISignatureFee"/>
  <xs:element name="NumberOfServiceHours" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_NumberOfServiceHours"/>
  <xs:element name="ServiceFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_ServiceFees"/>
  <xs:element name="BusinessDevelopmentFees" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_BusinessDevelopmentFees"/>
  <xs:element name="PercentageOfServiceFee" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PercentageOfServiceFee"/>
  <xs:element name="CashFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_CashFee"/>
  <xs:element name="TotalConsiderationAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="nklr_TotalConsiderationAmount"/>
  <xs:element name="EachConsiderationAmount" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_EachConsiderationAmount"/>
  <xs:element name="PercentageOfPricePayable" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PercentageOfPricePayable"/>
  <xs:element name="ManHourExceedPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ManHourExceedPercentage"/>
  <xs:element name="CommissionPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_CommissionPercentage"/>
  <xs:element name="NetIncomePerShareDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_NetIncomePerShareDetailsTable"/>
  <xs:element name="IncomeTaxesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_IncomeTaxesDetailsTable"/>
  <xs:element name="SubsequentEventsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="nklr_SubsequentEventsDetailsTable"/>
  <xs:element name="MonthlyInstallmentsPayments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="nklr_MonthlyInstallmentsPayments"/>
  <xs:element name="AdvisorWarrantMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_AdvisorWarrantMember"/>
  <xs:element name="AdvisoryServicesAgreementsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_AdvisoryServicesAgreementsMember"/>
  <xs:element name="BridgeLoanAgreementsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_BridgeLoanAgreementsMember"/>
  <xs:element name="BridgeLoanWarrantMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_BridgeLoanWarrantMember"/>
  <xs:element name="BridgeLoansMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_BridgeLoansMember"/>
  <xs:element name="BridgeWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_BridgeWarrantsMember"/>
  <xs:element name="BusinessDevelopmentMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_BusinessDevelopmentMember"/>
  <xs:element name="ConvertiblePreferredSharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ConvertiblePreferredSharesMember"/>
  <xs:element name="CorporateCapitalMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_CorporateCapitalMember"/>
  <xs:element name="EngineeringServicesAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_EngineeringServicesAgreementMember"/>
  <xs:element name="FPoliSolutionsLLCAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_FPoliSolutionsLLCAgreementMember"/>
  <xs:element name="GSRIIIPublicShareholdersMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_GSRIIIPublicShareholdersMember"/>
  <xs:element name="GuillaumeMoyenMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_GuillaumeMoyenMember"/>
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  <xs:element name="ImpostaSuiRedditiDelleSocietMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ImpostaSuiRedditiDelleSocietMember"/>
  <xs:element name="InvestorRelationsAndAdvisoryServicesAgreementsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_InvestorRelationsAndAdvisoryServicesAgreementsMember"/>
  <xs:element name="InvestorRelationsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_InvestorRelationsMember"/>
  <xs:element name="LeaseAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_LeaseAgreementMember"/>
  <xs:element name="LegacyTerraQuotaholdersMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_LegacyTerraQuotaholdersMember"/>
  <xs:element name="LiabilityClassifiedConvertiblePreferredSharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_LiabilityClassifiedConvertiblePreferredSharesMember"/>
  <xs:element name="MassimoMorichiMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_MassimoMorichiMember"/>
  <xs:element name="OctoberCapitalMarketsAdvisoryAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OctoberCapitalMarketsAdvisoryAgreementMember"/>
  <xs:element name="OctoberTwentySevenTwoThousandTwentyFiveCapitalMarketsAdvisoryAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OctoberTwentySevenTwoThousandTwentyFiveCapitalMarketsAdvisoryAgreementMember"/>
  <xs:element name="OctoberTwentyThreeTwoThousandTwentyFiveCapitalMarketsAdvisoryAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OctoberTwentyThreeTwoThousandTwentyFiveCapitalMarketsAdvisoryAgreementMember"/>
  <xs:element name="OrdinarySharesHeldByGSRIIIPublicShareholdersMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OrdinarySharesHeldByGSRIIIPublicShareholdersMember"/>
  <xs:element name="OrdinarySharesHeldBySponsorAndRelatedPartiesOfSponsorMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OrdinarySharesHeldBySponsorAndRelatedPartiesOfSponsorMember"/>
  <xs:element name="OrdinarySharesHeldByTerraInnovatumGlobalQuotaholdersMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OrdinarySharesHeldByTerraInnovatumGlobalQuotaholdersMember"/>
  <xs:element name="OrdinarySharesHeldByUnrelatedThirdPartiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OrdinarySharesHeldByUnrelatedThirdPartiesMember"/>
  <xs:element name="OrdinarySharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OrdinarySharesMember"/>
  <xs:element name="OrdinarySharesUnderlyingThePIPEFinancingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_OrdinarySharesUnderlyingThePIPEFinancingMember"/>
  <xs:element name="PIPESubscriptionAgreementsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PIPESubscriptionAgreementsMember"/>
  <xs:element name="PIPEWarrantMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_PIPEWarrantMember"/>
  <xs:element name="ParkAvenueCapitalGroupCorpMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ParkAvenueCapitalGroupCorpMember"/>
  <xs:element name="QuarterWarrantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_QuarterWarrantsMember"/>
  <xs:element name="SPACFinancialAdvisorPreferredSharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_SPACFinancialAdvisorPreferredSharesMember"/>
  <xs:element name="SPACFinancialAdvisoryServicesAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_SPACFinancialAdvisoryServicesAgreementMember"/>
  <xs:element name="SeniorAdvisorAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_SeniorAdvisorAgreementMember"/>
  <xs:element name="SeptemberCapitalMarketsAdvisoryAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_SeptemberCapitalMarketsAdvisoryAgreementMember"/>
  <xs:element name="TerraInnovatumGlobalSrlMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_TerraInnovatumGlobalSrlMember"/>
  <xs:element name="TerraOrdinarySharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_TerraOrdinarySharesMember"/>
  <xs:element name="TerraPreClosingRestructuringMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_TerraPreClosingRestructuringMember"/>
  <xs:element name="TwoThousandTwentyFiveLoanAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_TwoThousandTwentyFiveLoanAgreementMember"/>
  <xs:element name="TwoThousandTwentyFourLoanAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_TwoThousandTwentyFourLoanAgreementMember"/>
  <xs:element name="VariableInterestEntityMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_VariableInterestEntityMember"/>
  <xs:element name="VestingSponsorSharesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_VestingSponsorSharesMember"/>
  <xs:element name="ScheduleOfSignificantAssumptionsUsedInTheValuationOfTheLiabilityClassifiedWarrantsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_ScheduleOfSignificantAssumptionsUsedInTheValuationOfTheLiabilityClassifiedWarrantsLineItems"/>
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  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="nklr_DocumentAndEntityInformationAbstract"/>
</xs:schema>
