add support for other screen lockers using dbus (via loginctl lock-session)

[Alexthemediocre]

Enables screen lockers other than hyprlock to be used as long as they are configured to respond to dbus lock events. See Arch Wiki on session lock, loginctl(1). Triggers said dbus event using loginctl lock-session.

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An example setup that can respond to dbus lock events: swaylock + swayidle, with the below swayidle.service (modified from an example in the niri documentation). swayidle handles the dbus events and spawns swaylock.

~/.config/systemd/user/swayidle.service

[Unit]
PartOf=graphical-session.target
After=graphical-session.target
Requisite=graphical-session.target

[Service]
ExecStart=/usr/bin/swayidle -w timeout 601 'niri msg action power-off-monitors' timeout 600 'swaylock -f' before-sleep 'swaylock -f' lock 'swaylock -f'
Restart=on-failure