Pulls all Salesforce metadata as well as OmniStudio metadata.

package.xml

<?xml version="1.0" encoding="UTF-8"?>
<Package xmlns="http://soap.sforce.com/2006/04/metadata">
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        <name>ActionLinkGroupTemplate</name>
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        <name>Audience</name>
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        <name>AutoResponseRule</name>
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        <name>CMSConnectSource</name>
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        <name>CaseSubjectParticle</name>
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        <name>Certificate</name>
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        <name>ChannelLayout</name>
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        <name>ChatterExtension</name>
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        <name>CspTrustedSite</name>
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        <name>Dashboard</name>
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        <name>DataCategoryGroup</name>
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    <types>
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        <name>DelegateGroup</name>
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        <name>Document</name>
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        <name>DuplicateRule</name>
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        <name>EclairGeoData</name>
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        <name>EmailServicesFunction</name>
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        <name>Index</name>
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        <name>InstalledPackage</name>
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        <name>LeadConvertSettings</name>
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        <name>Letterhead</name>
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        <name>LightningComponentBundle</name>
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        <name>LightningExperienceTheme</name>
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        <name>ListView</name>
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        <name>ManagedTopic</name>
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        <name>ProfilePasswordPolicy</name>
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        <name>ProfileSessionSetting</name>
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        <name>RecordType</name>
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        <name>RemoteSiteSetting</name>
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        <name>SiteDotCom</name>
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        <name>SynonymDictionary</name>
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    <types>
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        <name>OmniUiCard</name>
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</Package>