Instalar keychain

sudo apt install keychain

Configure ~/.bashrc …

Use keychain for ssh-agent management

	if [[ -x /usr/bin/keychain ]]; then
		keychain ~/.ssh/id_ed25519
		. "${HOME}/.keychain/${HOSTNAME}-sh"
	fi

Flush all cached keys from memory …

keychain --clear                  

If using tmux, enable persistent SSH key management across sessions by editing ~/.tmux.conf …

set-option -g update-environment "DISPLAY SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID SSH_CONNECTION WINDOWID XAUTHORITY"