how make it autostart "startx -- -nocursor" in opensuse/openbox?

i want make it automatically to start with no-cursor: startx -- -nocursor this is worked but this is command..i want to autostart to user: kiosk.. (but i don't want to use "unclutter") i'm not understand where i will can add script or file configure startx with no-cursor.. .xinitrc? or other file configure.. i use opensuse 15.6 with openbox so i ask here, i hope find your help hand code.. :-) thank you