GitHub Notifications Help

2 questions, related to notifications.

Frist:
Currently, I get notifications for repositroies that were created after I joined SparkFun. I would like to get notification on repositories that were created before I joined. Is there a way to set this up without having to go into each repository?

Second:
Assuming the above is possible, can I force notifications for all repositories to a couple individuals?

Thanks!

If you have a properly authorized github token, you can add watches to an account, either w/ the v3 api:

https://docs.github.com/en/rest/reference/activity#set-a-repository-subscription