Tested this and was positively surprised to see how it uses embed/embed to support oembed and other things. The project page doesn't mention anything like that, which is sad.
Update project page, explain that it supports many oembed providers like youtube, twitter, facebook.
Reference to composer install documentation to install embed/embed.
Fixed
1.0
Code
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
Thanks for reporting this, and sorry for not responding sooner. The project page has been updated along these lines, and a new documentation guide has been added at https://www.drupal.org/docs/extending-drupal/contributed-modules/contrib... →
Closing as "Fixed."
Automatically closed - issue fixed for 2 weeks with no activity.