yaws-yapp binary package in Ubuntu Bionic amd64

 Yaws-yapp (Yaws application handler) is a helper application.
 It takes care of adding, and removing, the applications into a running
 server. When anyone access the server with an URL that matches the path
 for an added application, the docroot will be temporarily switched
 to where the web pages for that application are located.
 .
 This package provides Yapp config file which is intended to use along
 with fully installed Yaws webserver.

Source package