<c:ProgressCircle progress="66.66" variant="success">
<aura:set attribute="tooltip">Tooltip text</aura:set>
</c:ProgressCircle>
sfdx force:org:create -f config/project-scratch-def.json -a <ScratchOrgName>
sfdx force:source:push -u <ScratchOrgName>
sfdx force:org:open -u <ScratchOrgName>
Navigate to tab "Progress Circle Demo" - Voila!