Using external jar files with existing Flowable apps

Hi,

I have a requirement to use some TaskHandlers and ExecutionHandlers which are written by me but I want to use these with existing flowable-rest/modeler apps. I do not want to change the apps or create new one.

Is there a way I can specify my jar file while starting flowable-rest as a spring boot application?
It will be really a great help

Thanks,
Deepanshu