The Waydroid docs already include a section on using Waydroid without systemctl.
Considering that Waydroid requires a D-Bus system bus (to the best of my knowledge) and that a system bus is usually started with systemd, I believe that it would be a good idea to discuss how to start D-Bus without systemctl, too.
Here's my approach:
[ ! -d /run/dbus ] && install -m755 -g 22 -o 22 -d /run/dbus
exec dbus-daemon --system --nofork --nopidfile
You run that in its own terminal tab.
The Waydroid docs already include a section on using Waydroid without systemctl.
Considering that Waydroid requires a D-Bus system bus (to the best of my knowledge) and that a system bus is usually started with systemd, I believe that it would be a good idea to discuss how to start D-Bus without systemctl, too.
Here's my approach:
You run that in its own terminal tab.