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  <xs:element id="omda_LineOfCreditFacilityCovenantMinimumNetRevenueTerm" abstract="false" name="LineOfCreditFacilityCovenantMinimumNetRevenueTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="omda_LineOfCreditFacilityCovenantRequiredMinimumLiquidity" abstract="false" name="LineOfCreditFacilityCovenantRequiredMinimumLiquidity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_LineOfCreditFacilityInterestOnlyPeriodTerm" abstract="false" name="LineOfCreditFacilityInterestOnlyPeriodTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="omda_LineOfCreditFacilityAdditionalInterestOnlyPeriodTerm" abstract="false" name="LineOfCreditFacilityAdditionalInterestOnlyPeriodTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="omda_LineOfCreditFacilityMinimumRequiredBorrowingPercentage" abstract="false" name="LineOfCreditFacilityMinimumRequiredBorrowingPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_DebtInstrumentVariableRateFloor" abstract="false" name="DebtInstrumentVariableRateFloor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="omda_LineOfCreditFacilityOriginationFeePercentage" abstract="false" name="LineOfCreditFacilityOriginationFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="omda_LineOfCreditFacilityOriginationFeeAmount" abstract="false" name="LineOfCreditFacilityOriginationFeeAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_LineOfCreditFacilityAnnualAdministrativeFeePercentage" abstract="false" name="LineOfCreditFacilityAnnualAdministrativeFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_LineOfCreditFacilityAnnualCollateralManagementFeePercentage" abstract="false" name="LineOfCreditFacilityAnnualCollateralManagementFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_LineOfCreditFacilityPrepaymentFeePercentage" abstract="false" name="LineOfCreditFacilityPrepaymentFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_LineOfCreditFacilityCovenantLiquidityRatioMaximum" abstract="false" name="LineOfCreditFacilityCovenantLiquidityRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="omda_RecordedUnconditionalPurchaseObligationToBePaidAfterYearFour" abstract="false" name="RecordedUnconditionalPurchaseObligationToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_SeriesCRedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesCRedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_SeriesC1RedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesC1RedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_SeriesD1RedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesD1RedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_SeriesERedeemableConvertiblePreferredStockMember" abstract="true" name="SeriesERedeemableConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_TemporaryEquityDividendRatePercentage" abstract="false" name="TemporaryEquityDividendRatePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_PreferredStockConvertibleAutomaticConversionPriceThreshold" abstract="false" name="PreferredStockConvertibleAutomaticConversionPriceThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="omda_PreferredStockConvertibleAutomaticConversionProceedsThreshold" abstract="false" name="PreferredStockConvertibleAutomaticConversionProceedsThreshold" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_PreferredStockConvertibleStockConversionApprovalPercentage" abstract="false" name="PreferredStockConvertibleStockConversionApprovalPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="omda_PreferredStockVotingRightsVotesPerShare" abstract="false" name="PreferredStockVotingRightsVotesPerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="omda_PreferredStockVotingRightsPercentageThreshold" abstract="false" name="PreferredStockVotingRightsPercentageThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="omda_PreferredStockVotingRightsNumberOfDirectorsEntitledToElect" abstract="false" name="PreferredStockVotingRightsNumberOfDirectorsEntitledToElect" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="omda_PreferredStockVotingRightsMinimumSharesOutstandingPercentage" abstract="false" name="PreferredStockVotingRightsMinimumSharesOutstandingPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="omda_CommonStockVotingRightsNumberOfDirectorsEntitledToElect" abstract="false" name="CommonStockVotingRightsNumberOfDirectorsEntitledToElect" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="omda_RedeemableConvertiblePreferredStockWarrantsMember" abstract="true" name="RedeemableConvertiblePreferredStockWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_CommonStockSharesAvailableForFutureGrantMember" abstract="true" name="CommonStockSharesAvailableForFutureGrantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_A2025EquityIncentivePlanMember" abstract="true" name="A2025EquityIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_A2025EmployeeStockPurchasePlanMember" abstract="true" name="A2025EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInSharesAvailableForGrantPercentageOfSharesOutstanding" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInSharesAvailableForGrantPercentageOfSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumSharesIssuable" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumSharesIssuable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="omda_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionAwardMaximumTerm" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionAwardMaximumTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="omda_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionAmount" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="omda_ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAvailableForGrantPeriodForIncrease" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAvailableForGrantPeriodForIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="omda_CommercialAgreementsMember" abstract="true" name="CommercialAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_CignaVenturesLLCMember" abstract="true" name="CignaVenturesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="omda_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateNetOfAdjustmentsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRateNetOfAdjustmentsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_EffectiveIncomeTaxRateReconciliationTaxCreditResearchNetOfAdjustmentsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationTaxCreditResearchNetOfAdjustmentsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowanceNetOfAdjustmentsPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowanceNetOfAdjustmentsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="omda_DeferredTaxAssetsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_DeferredTaxAssetResearchAndDevelopmentCapitalizationCosts" abstract="false" name="DeferredTaxAssetResearchAndDevelopmentCapitalizationCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset" abstract="false" name="DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="omda_DeferredTaxAssetsValuationAllowanceRollForward" abstract="true" name="DeferredTaxAssetsValuationAllowanceRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
</xs:schema>
