Double-login -- connecting Github login + Google login?

I have a situation in which I want to users to log in with both their Github account and their Google account. I need this because my app deals with APIs from these two companies and it is just easier for me to think about if I think in terms of these accounts, since all my users will be required to have both a Google account and a Github account anyway.

My question: there is nothing more to this than adding both the accounts-google and accounts-github packages, right?

there is. I think the reason you haven’t got a reply is because it’s been covered many times. Either search for a package or code it yourself (code examples available in this forum)