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        <link:linkbaseRef xlink:type="simple" xlink:href="hllk-20260331_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" />
      </appinfo>
    </annotation>
    <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
    <import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd" />
    <import namespace="http://fasb.org/us-gaap/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd" />
    <import namespace="http://fasb.org/us-types/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-types-2026.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2026" schemaLocation="https://xbrl.sec.gov/country/2026/country-2026.xsd" />
    <import namespace="http://fasb.org/srt/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd" />
    <import namespace="http://fasb.org/srt-types/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd" />
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    <element id="HLLK_EndicottHoldingsGroupLLCMember" name="EndicottHoldingsGroupLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_BeartoothAssetHoldingsLLCMember" name="BeartoothAssetHoldingsLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="HLLK_ChangeOfControlAgreementMember" name="ChangeOfControlAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_PaulStricklandMember" name="PaulStricklandMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_MurphyAndStricklandMember" name="MurphyAndStricklandMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="HLLK_AurumMember" name="AurumMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ShareholdersMember" name="ShareholdersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_JubileeIntelLLCMember" name="JubileeIntelLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="HLLK_SelkirkGlobalHoldingsLlcMember" name="SelkirkGlobalHoldingsLlcMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_OctoberTwoThousandTwentyTwoConvertiblePromissoryNoteMember" name="OctoberTwoThousandTwentyTwoConvertiblePromissoryNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AprilTwoThousandTwentyThreeConvertiblePromissoryNoteMember" name="AprilTwoThousandTwentyThreeConvertiblePromissoryNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DecemberTwelveTwoThousandTwentyThreeConvertibleExchangeNoteMember" name="DecemberTwelveTwoThousandTwentyThreeConvertibleExchangeNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertibleExchangeNoteMember" name="SixPercentConvertibleExchangeNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_PromissoryNoteMember" name="PromissoryNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AlphaStrategiesTradingSoftwareIncMember" name="AlphaStrategiesTradingSoftwareIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NicoselLLCMember" name="NicoselLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_WarrantSubscriptionAgreementMember" name="WarrantSubscriptionAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_EightPercentConvertiblePromissoryNotesMember" name="EightPercentConvertiblePromissoryNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertiblePromissoryNotesMember" name="SixPercentConvertiblePromissoryNotesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ConvertiblePromissoryNoteFourMember" name="ConvertiblePromissoryNoteFourMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DebtHolderMember" name="DebtHolderMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertibleExchangeNoteOneMember" name="SixPercentConvertibleExchangeNoteOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertiblePromissoryNotesOneMember" name="SixPercentConvertiblePromissoryNotesOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertiblePromissoryNotesTwoMember" name="SixPercentConvertiblePromissoryNotesTwoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertiblePromissoryNotesThreeMember" name="SixPercentConvertiblePromissoryNotesThreeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_SixPercentConvertiblePromissoryNotesFourMember" name="SixPercentConvertiblePromissoryNotesFourMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ConvertiblePromissoryNotesFourMember" name="ConvertiblePromissoryNotesFourMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ConvertiblePromissoryNoteFiveMember" name="ConvertiblePromissoryNoteFiveMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NicholasRutherfordMember" name="NicholasRutherfordMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="HLLK_GMFVenturesLLCMember" name="GMFVenturesLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DecemberFiveTwoThousandTwentyThreeNoteMember" name="DecemberFiveTwoThousandTwentyThreeNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_MayThrityTwoThousandTwentyFiveNoteMember" name="MayThrityTwoThousandTwentyFiveNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_MayFourteenTwoThousandTwentyFiveNoteMember" name="MayFourteenTwoThousandTwentyFiveNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NovemberThirtyTwoThousandTwentyMember" name="NovemberThirtyTwoThousandTwentyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_OctoberSixTwoThousandTwentyTwoNoteMember" name="OctoberSixTwoThousandTwentyTwoNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_JuneFiveTwoThousandTwentyThreeNoteMember" name="JuneFiveTwoThousandTwentyThreeNoteMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_CostOfRevenueMember" name="CostOfRevenueMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_OtherCostsMember" name="OtherCostsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_StockPayable" name="StockPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_InterestWaivedOff" name="InterestWaivedOff" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_LossOnIssuanceOfConvertibleDebt" name="LossOnIssuanceOfConvertibleDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_IncreaseDecreaseInAccruedCompensation" name="IncreaseDecreaseInAccruedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_IncreaseDecreaseInAssetsFromDiscontinuedOperations" name="IncreaseDecreaseInAssetsFromDiscontinuedOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NonCashOperatingAndInvestingActivitiesAbstract" name="NonCashOperatingAndInvestingActivitiesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_CommonStockIssuedForPaymentOfDebtOne" name="CommonStockIssuedForPaymentOfDebtOne" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_CommonStockIssuedForPaymentOfDebtRelatedParty" name="CommonStockIssuedForPaymentOfDebtRelatedParty" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DisclosureNoteReceivableAbstract" name="DisclosureNoteReceivableAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NoteReceivableDisclosureTextBlock" name="NoteReceivableDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DisclosureConvertibleNotesPayableAbstract" name="DisclosureConvertibleNotesPayableAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ConvertibleNotesPayableTextBlock" name="ConvertibleNotesPayableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DisclosureStockPayableAbstract" name="DisclosureStockPayableAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_StockPayableNoteDisclosureTextBlock" name="StockPayableNoteDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DisclosureWarrantsAbstract" name="DisclosureWarrantsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_WarrantsTextBlock" name="WarrantsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_RelatedPartyTransactionsPolicyTextBlock" name="RelatedPartyTransactionsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ReverseStockSplitPolicyTextBlock" name="ReverseStockSplitPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AllowanceForCreditLossesPolicyTextBlock" name="AllowanceForCreditLossesPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NoteReceivableTableTextBlock" name="NoteReceivableTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ScheduleOfAssumptionsToFairValueOfTheWarrantsTableTextBlock" name="ScheduleOfAssumptionsToFairValueOfTheWarrantsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ScheduleOfTaxComputationsTableTextBlock" name="ScheduleOfTaxComputationsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ScheduleOfNetLossFromDiscontinuedOperationsTableTextBlock" name="ScheduleOfNetLossFromDiscontinuedOperationsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="HLLK_PercentageOfSharesTransferred" name="PercentageOfSharesTransferred" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NumberOfSharesTransferred" name="NumberOfSharesTransferred" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DebtCancellation" name="DebtCancellation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AccruedCreditCardsCurrent" name="AccruedCreditCardsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ReinstatedDebt" name="ReinstatedDebt" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ConvertibleNotesPrincipalAmountPayable" name="ConvertibleNotesPrincipalAmountPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_TransferAgentFees" name="TransferAgentFees" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DecreaseToDerivativeDueToRepayments" name="DecreaseToDerivativeDueToRepayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="HLLK_ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsGrantsInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsGrantsInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsExpirationsInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsExpirationsInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsExercisesInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardNonOptionsExercisesInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_StockTransferredDuringPeriodSharesRestrictedStock" name="StockTransferredDuringPeriodSharesRestrictedStock" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AdjustmentsToArriveAtTaxableIncomeLossPermanentDifferences" name="AdjustmentsToArriveAtTaxableIncomeLossPermanentDifferences" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AdjustmentsToArriveAtTaxableIncomeLossTemporaryDifferences" name="AdjustmentsToArriveAtTaxableIncomeLossTemporaryDifferences" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_AdjustmentsToArriveAtTaxableIncomeLossTaxableIncomeLoss" name="AdjustmentsToArriveAtTaxableIncomeLossTaxableIncomeLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NetOperatingLossCarriedForwardPriorYearTaxReturn" name="NetOperatingLossCarriedForwardPriorYearTaxReturn" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_NetOperatingLossCarriedForwardAtPeriodEnd" name="NetOperatingLossCarriedForwardAtPeriodEnd" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HLLK_DisposalGroupIncludingDiscontinuedOperationExpense" name="DisposalGroupIncludingDiscontinuedOperationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
