No, but that is an option if you dont have the hardware to self host it. I have it on one of my vms on my server in the basement.
EDIT: I just took another look at the github repo and it kind of looks like you can’t just selfhost it, but you can, the main readme is just a little confusing. Click on the “Setup your CouchDB” link in the manual section and the selfhosted via docker guide is there.
Canadian English is also tire. We have a good mix of both sides