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          <link:usedOn>link:calculationLink</link:usedOn>
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          <link:usedOn>link:calculationLink</link:usedOn>
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          <link:usedOn>link:calculationLink</link:usedOn>
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          <link:usedOn>link:calculationLink</link:usedOn>
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          <link:usedOn>link:calculationLink</link:usedOn>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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          <link:usedOn>link:calculationLink</link:usedOn>
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        <link:linkbaseRef xlink:type="simple" xlink:href="citr-20260630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
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    <element id="CITR_CostOfRevenueExclusiveOfAmortizationAndDepreciation" name="CostOfRevenueExclusiveOfAmortizationAndDepreciation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CostOfRevenueRelatedParties" name="CostOfRevenueRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ProfessionalFeesRelatedParties" name="ProfessionalFeesRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_InterestExpensesRelatedParty" name="InterestExpensesRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_FinancingInterestExpenseRelatedParty" name="FinancingInterestExpenseRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesCPreferredStockIssuedForServicesAmount" name="SeriesCPreferredStockIssuedForServicesAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesCPreferredStockIssuedForServicesShares" name="SeriesCPreferredStockIssuedForServicesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesCPreferredStockForCompensation" name="SeriesCPreferredStockForCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesCPreferredStockForCompensationShares" name="SeriesCPreferredStockForCompensationShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesPreferredStockExchangedForSeriesCPreferredStockAndSeriesCPreferredStockPayable" name="SeriesPreferredStockExchangedForSeriesCPreferredStockAndSeriesCPreferredStockPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesPreferredStockExchangedForSeriesCPreferredStockAndSeriesCPreferredStockPayableShares" name="SeriesPreferredStockExchangedForSeriesCPreferredStockAndSeriesCPreferredStockPayableShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForExerciseOfWarrants" name="CommonStockIssuedForExerciseOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForExerciseOfWarrantsShares" name="CommonStockIssuedForExerciseOfWarrantsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForCashlessExerciseOfWarrants" name="CommonStockIssuedForCashlessExerciseOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForCashlessExerciseOfWarrantsShares" name="CommonStockIssuedForCashlessExerciseOfWarrantsShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForStockPayable" name="CommonStockIssuedForStockPayable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForStockPayableShares" name="CommonStockIssuedForStockPayableShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_AdjustmentsToAdditionalPaidInCapitalManagementStockCompensation" name="AdjustmentsToAdditionalPaidInCapitalManagementStockCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_AdjustmentsToAdditionalPaidInCapitalManagementStockCompensationShares" name="AdjustmentsToAdditionalPaidInCapitalManagementStockCompensationShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_WarrantsIssuedForService" name="WarrantsIssuedForService" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ContributedCapital" name="ContributedCapital" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationUnrelatedParties" name="ShareBasedCompensationUnrelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationRelatedParties" name="ShareBasedCompensationRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ProceedsFromConvertibleNoteAndWarrantsRelatedParty" name="ProceedsFromConvertibleNoteAndWarrantsRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SeriesPreferredStockExchangedForSeriesCPreferredStockAndSeriesCPreferredStockPayables" name="SeriesPreferredStockExchangedForSeriesCPreferredStockAndSeriesCPreferredStockPayables" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedUponConversionOfSeriesCPreferredStocks" name="CommonStockIssuedUponConversionOfSeriesCPreferredStocks" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CommonStockIssuedForConversionAndSettlementOfDebt" name="CommonStockIssuedForConversionAndSettlementOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_DebtModification" name="DebtModification" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_WarrantsIssuedInConjunctionWithConvertibleDebts" name="WarrantsIssuedInConjunctionWithConvertibleDebts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_RightofuseAssetsObtainedInExchangeForNewOperatingLeaseLiabilities" name="RightofuseAssetsObtainedInExchangeForNewOperatingLeaseLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_RecognitionOfDerivativeLiabilityAsDebtDiscount" name="RecognitionOfDerivativeLiabilityAsDebtDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_TransferFromInventoryToPropertyAndEquipment" name="TransferFromInventoryToPropertyAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_AcquisitionOfPropertyAndEquipmentAsFinancingLoan" name="AcquisitionOfPropertyAndEquipmentAsFinancingLoan" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_DisclosureLeaseAbstract" name="DisclosureLeaseAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_RelatedPartiesPolicyTextBlock" name="RelatedPartiesPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_DeferredRevenuePolicyTextBlock" name="DeferredRevenuePolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CostOfRevenueTableTextBlock" name="CostOfRevenueTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleOfPropertyPlantAndEquipmentDepreciationTableTextBlock" name="ScheduleOfPropertyPlantAndEquipmentDepreciationTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleOfPropertyPlantAndEquipmentInterestExpenseTableTextBlock" name="ScheduleOfPropertyPlantAndEquipmentInterestExpenseTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleofrightOfUseAssetAndLeaseInformationTableTextBlock" name="ScheduleofrightOfUseAssetAndLeaseInformationTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleOfCashFlowInformationRelatedToLeasesTableTextBlock" name="ScheduleOfCashFlowInformationRelatedToLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleOfConvertibleDebtRelatedPartyTableTextBlock" name="ScheduleOfConvertibleDebtRelatedPartyTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleOfInterestExpenseAndAmortizationOfDebtRelatedPartyTableTextBlock" name="ScheduleOfInterestExpenseAndAmortizationOfDebtRelatedPartyTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ScheduleOfRevenueAndAccountsReceivableTableTextBlock" name="ScheduleOfRevenueAndAccountsReceivableTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_WorkingCapital" name="WorkingCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_CostOfRevenueLineItems" name="CostOfRevenueLineItems" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_PrepaidExpensesLineItems" name="PrepaidExpensesLineItems" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" name="FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_AccountsPayableLineItems" name="AccountsPayableLineItems" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ConvertibleNotesPayableRelatedParties" name="ConvertibleNotesPayableRelatedParties" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDerivedServicePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDerivedServicePeriod" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate1" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_SharePriceRange" name="SharePriceRange" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate1" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsThresholder" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsThresholder" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantedRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantedRemainingContractualTerms" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableNumber" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherOptionsExercisableWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherOptionsExercisableWeightedAverageExercisePrice" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="CITR_DisclosureTable" name="DisclosureTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="CITR_NumberOfCustomer" name="NumberOfCustomer" nillable="true" xbrli:periodType="duration" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
</schema>
