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  <xs:element id="nrds_SecuredOvernightFinancingRateReferenceRatePlusMember" abstract="true" name="SecuredOvernightFinancingRateReferenceRatePlusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nrds_ConversionOfRedeemableConvertiblePreferredStockToClassACommonStockMember" abstract="true" name="ConversionOfRedeemableConvertiblePreferredStockToClassACommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_StockIssuedDuringPeriodValueStockOptionsVested" abstract="false" name="StockIssuedDuringPeriodValueStockOptionsVested" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_StockRepurchasedDuringPeriodPricePerShare" abstract="false" name="StockRepurchasedDuringPeriodPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="nrds_UnbilledAccountsPayableCurrent" abstract="false" name="UnbilledAccountsPayableCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_SubordinatedPromissoryNoteMember" abstract="true" name="SubordinatedPromissoryNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_PercentageOfStockOwnedBySingleIndividual" abstract="false" name="PercentageOfStockOwnedBySingleIndividual" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="nrds_DebtInstrumentCovenantPeriodToFurnishAuditedFinancialStatementsAfterQualifiedIPO" abstract="false" name="DebtInstrumentCovenantPeriodToFurnishAuditedFinancialStatementsAfterQualifiedIPO" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="nrds_RevenuePerformanceObligationMaximumPaymentTermPeriodInGeneral" abstract="false" name="RevenuePerformanceObligationMaximumPaymentTermPeriodInGeneral" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="nrds_DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets" abstract="false" name="DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_SecuredOvernightFinancingRateWith3MonthInterestPeriodsMember" abstract="true" name="SecuredOvernightFinancingRateWith3MonthInterestPeriodsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_CommonClassFMember" abstract="true" name="CommonClassFMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_TemporaryEquityDisclosureTextBlock" abstract="false" name="TemporaryEquityDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="nrds_CustomerOneMember" abstract="true" name="CustomerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_CommonStockConversionRatio" abstract="false" name="CommonStockConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nrds_OnTheBarrelheadIncMember" abstract="true" name="OnTheBarrelheadIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_BusinessCombinationConsiderationTransferredBeforePostCombinationExpense" abstract="false" name="BusinessCombinationConsiderationTransferredBeforePostCombinationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_BusinessAmountConsiderationTransferredCashDepositedInEscrow" abstract="false" name="BusinessAmountConsiderationTransferredCashDepositedInEscrow" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_NumberOfEmployees" abstract="false" name="NumberOfEmployees" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nrds_SMBProductsMember" abstract="true" name="SMBProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nrds_CommonStockCapitalSharesReservedForFutureIssuanceEmployeeStockPurchasePlanOfferings" abstract="false" name="CommonStockCapitalSharesReservedForFutureIssuanceEmployeeStockPurchasePlanOfferings" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nrds_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_ShareBasedPaymentArrangementEmployeeOwningGreaterThan10OfCompanyStockMember" abstract="true" name="ShareBasedPaymentArrangementEmployeeOwningGreaterThan10OfCompanyStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_FourthVestingYearMember" abstract="true" name="FourthVestingYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_SamuelYountMember" abstract="true" name="SamuelYountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nrds_CoFounderMember" abstract="true" name="CoFounderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_CreditAgreementAlternativeBaseRateLoansMember" abstract="true" name="CreditAgreementAlternativeBaseRateLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_FiniteLivedIntangibleAssetsForeignCurrencyAdjustment" abstract="false" name="FiniteLivedIntangibleAssetsForeignCurrencyAdjustment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_ScheduleOfPrepaidExpensesTableTextBlock" abstract="false" name="ScheduleOfPrepaidExpensesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="nrds_DeferredTaxAssetsFederalAndStateTaxes" abstract="false" name="DeferredTaxAssetsFederalAndStateTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_StockOptionsAndRestrictedStockUnitsReservedForFutureIssuance" abstract="false" name="StockOptionsAndRestrictedStockUnitsReservedForFutureIssuance" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nrds_DenominatorAbstract" abstract="true" name="DenominatorAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nrds_A2021EquityIncentivePlanAndInducementPlanMember" abstract="true" name="A2021EquityIncentivePlanAndInducementPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_RestrictedStockUnitsServiceBasedAndPerformanceBasedMember" abstract="true" name="RestrictedStockUnitsServiceBasedAndPerformanceBasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_CoFoundersMember" abstract="true" name="CoFoundersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_GainLossOnSaleOfSubleaseAssets" abstract="false" name="GainLossOnSaleOfSubleaseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_TwoThousandTwentyOneEquityIncentivePlanMember" abstract="true" name="TwoThousandTwentyOneEquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_NumberOfVotesForEachShare" abstract="false" name="NumberOfVotesForEachShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nrds_TemporaryEquityValueSharesRepurchased" abstract="false" name="TemporaryEquityValueSharesRepurchased" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_NumberOfWhollyOwnedSubsidiariesDebtCounterparties" abstract="false" name="NumberOfWhollyOwnedSubsidiariesDebtCounterparties" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nrds_CreditAgreementMember" abstract="true" name="CreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_DeferredTaxAssetsLeaseLiability" abstract="false" name="DeferredTaxAssetsLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_CommonStockWithheldRelatedToNetShareSettlementOfRSUs" abstract="false" name="CommonStockWithheldRelatedToNetShareSettlementOfRSUs" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_CommonClassGMember" abstract="true" name="CommonClassGMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_SeriesARedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesARedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherCurrentLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherCurrentLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_CustomerTwoMember" abstract="true" name="CustomerTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_CapitalizedSoftwareDevelopmentCostsIncurredButNotYetPaid" abstract="false" name="CapitalizedSoftwareDevelopmentCostsIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_ContingentConsiderationMember" abstract="true" name="ContingentConsiderationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_DepreciationDepletionAndAmortizationExcludingCapitalizedSoftware" abstract="false" name="DepreciationDepletionAndAmortizationExcludingCapitalizedSoftware" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_FormerBoardMemberAndAffiliatedEntityMember" abstract="true" name="FormerBoardMemberAndAffiliatedEntityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_MarginPercentageMember" abstract="true" name="MarginPercentageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_EmployeesMember" abstract="true" name="EmployeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_ConversionOfRedeemableConvertiblePreferredStockToCommonStockUponIPOMember" abstract="true" name="ConversionOfRedeemableConvertiblePreferredStockToCommonStockUponIPOMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_StockRepurchasedDuringPeriodSharesEarlyExercisedStockOptions" abstract="false" name="StockRepurchasedDuringPeriodSharesEarlyExercisedStockOptions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nrds_NumeratorAbstract" abstract="true" name="NumeratorAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nrds_UserBaseMember" abstract="true" name="UserBaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_CommonStockCapitalSharesReservedForFutureIssuanceEquityAwardGrants" abstract="false" name="CommonStockCapitalSharesReservedForFutureIssuanceEquityAwardGrants" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nrds_SignificantConsolidatedBalanceSheetComponentsAbstract" abstract="true" name="SignificantConsolidatedBalanceSheetComponentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nrds_LockupArrangementPeriodForHalfOfStockConsideration" abstract="false" name="LockupArrangementPeriodForHalfOfStockConsideration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="nrds_StockRepurchaseProgramAdditionalAuthorizedAmount" abstract="false" name="StockRepurchaseProgramAdditionalAuthorizedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nrds_EmergingVerticalsMember" abstract="true" name="EmergingVerticalsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nrds_TemporaryEquityValueConversionOfConvertibleSecurities" abstract="false" name="TemporaryEquityValueConversionOfConvertibleSecurities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
