I haven't ignored your request here tho, I did take a look at Shortwave and manage to package it for BL6.0. It will be in BL6.0 repos as soon as I set that up.
What do you mean by Google Play Music. Isn't that service being discontinued.
Also doesn't our repo have tools to format pendrives? What app are you looking for?
As to the rest of the apps, just be aware that it is time consuming and sometimes difficult to package applications. It is easier for me if I find a debian based distro that has already packaged it and use or modify the debian folder they use. Also it is not always possible or feasible to package some apps due to package conflicts which can break your install. So each application like that needs closely examined and requires work.