Restore macOS Contacts from Time Machine backup

I use my Contacts data extensively, including groups and other metadata. Sadly, I've had issues where it loses some data. It is maddening. I'll realize I have 200 or so fewer contacts than I should, and it is entirely unclear what happened. This article is a good step-by-step on how to fix this. For me, I've had to go to the database restore on the file system multiple times. I now backup this data set manually, using both a database backup and a CalDAV export, each month. 💀