Use JXA to call a JSX script with parameters

From searching the interwebs it seems that JXA is essentially dead. But, I would like to use Keyboard Maestro/JXA to call a JSX script with a parameter if possible. Could anyone point me in the right direction? Is there an Illustrator/JXA reference somewhere so I could do some research? Is anyone else using KM to do something similar? Is there a better way to call a JSX script from KM? Any help would be appreciated. Thank you!