Git/Github - multiple accounts

gistfile1.txt

1. Generate 2 or more gpg keys https://docs.github.com/en/authentication/managing-commit-signature-verification/generating-a-new-gpg-key
2. Those keys will be under ~/.ssh 
3. Add them to the right accounts
4. Edit config file under ~/.ssh

cat ~/.ssh/config

Host personal
        HostName github.com
        User git
        IdentityFile ~/.ssh/id_ed25519_personal
        #       UseKeychain yes

Host work
        HostName github.com
        User git
        IdentityFile ~/.ssh/id_ed25519
        #       UseKeychain yes
5. Check GPG keys needed for next step: gpg --list-secret-keys --keyid-format=long
6. Add user details globally
git config --global user.name "Mona Lisa" 
git config --global user.email "Mona@Lisa.com"
git config --global user.signingkey "KeyID" -> this key can be found from step 5 (rsa4096/<key_id> 2022-12-21 [SC])

7. Now to add specific project keys ( local ), cd into project folder and run the below
git config --local user.name "Mona Lisa" 
git config --local user.email "Mona@Lisa.com"
git config --local user.signingkey "KeyID" -> this key can be found from step 5 (rsa4096/<key_id> 2022-12-21 [SC])
git remote add <NAME> "personal:<path>"

That should be it.