Still failing to add additional checkout SSH keys

[halfer]

I am 100% sure this is possible. It was discussed recently here:

Multiple deploy keys for GitHub

Hi there, I know, there are multiple threads about this kind of issue already, but all of them are closed and there’s no option of asking follow up questions. So, the situation is like this: to build our application we need to access a second repository located on the same host as the project repo itself (GitHub). Now with GitHub we can’t use the same deploy keys for multiple repos. On Bitbucket this works, but alas, we’re on GitHub. Machine users are out of question as some organisation rules…

Would you create a minimal working example that people can look at? I suggest you make a single public GitHub repo, and show all the steps you have taken to checkout a secondary repo.

(You may find that someone will clone your repo and amend it to do the secondary clone on one of their own private projects, but they might not go to the trouble of constructing all of that from scratch).