How can I configure it so that one key or account can correspond to multiple projects?

[qooke]

Hello everyone, I have a GitHub account with multiple projects.

How can I configure it so that one key or account can correspond to multiple projects?

The method I use now requires creating multiple project keys and adding multiple projects manually. It is very cumbersome.

# aaa  Repo
Host aaa github.com
HostName github.com
IdentityFile ~/.ssh/aaa_id_rsa

# ccc Repo
Host ccc github.com
HostName github.com
IdentityFile ~/.ssh/ccc_id_rsa

thank you all