Setup the KDE environment to automatically initialize the ssh agent and load the keys from .ssh.

kde-ssh-autostart-setup.sh

#!/bin/bash

sudo apt install ksshaskpass -y

ssh_keys=$(find "${HOME}/.ssh" -type f ! -name "*.*" | tr '\n' ' ')
ssh_unlock_script_path="${HOME}/.config/autostart-scripts/ssh-unlock.sh"

rm -rf "${ssh_unlock_script_path}"

echo "#!/bin/bash
SSH_ASKPASS=/usr/bin/ksshaskpass ssh-add ${ssh_keys} </dev/null
" >> "${ssh_unlock_script_path}"

chmod +x "${ssh_unlock_script_path}"