Using SSH for GitHub on Mac

Generate SSH Key

ssh-keygen -t ed25519 -C "your_mail@example.com" # Enter your passphrase
eval "$(ssh-agent -s)"
nano ~/.ssh/config

Add the following in the config file

Host github.com
  AddKeysToAgent yes
  UseKeychain yes
  IdentityFile ~/.ssh/id_ed25519

ssh-add --apple-use-keychain ~/.ssh/id_ed25519

Add public key to GitHub

Command + Shift + . to see the hidden files

Go to /Users/user_name/.ssh/

Find the file id_ed25519.pub

Cope the content or just the following command to copy automatically

pbcopy < /Users/user_name/.ssh/id_ed25519.pub

GitHub.com -> Settings -> SSH Keys -> Put your key there