on your development PC/laptop: install dactest.py dependencies. You need python3 and then pip3 install requests colorama websocket-client
by default the script is configured properly for RPI3. But for RPI4 you have to edit the script and set DEFAULT_ASMS_PLATFORM_RDK="rpi4" and DEFAULT_ASMS_FIRMWARE_RDK="1.0.0-e71889dc02521bfdc2f9f38f750b34224184c375-dbg". New: since recently dactest.py will fetch this configuration from LISA itself and use it. No need to edit these anymore.
use ./dactest.py 192.168.0.117 (replace with your RPI IP)
it will use the RDK ASMS to list apps available from the cloud. Use "Ix" where x is the number/index of the app you want to install. Later you can use "Ux" to remove it again.
after successful installation you can start the app using "Sx" and stop it using "Tx".