unable to add repo to hacks

Question 1

please advice, i am unable to add repo to hacks

Question 2

I also don't see this on the list of repositories in HACS:

Answer · 2021-08-27T20:46:58.000Z

I also don't see this on the list of repositories in HACS:

Question 3

This is a custom repository that you have to add yourself.

Answer · 2021-10-18T22:08:44.000Z

This is a custom repository that you have to add yourself.