I think the packaging of the dev package is really inconvenient. The sources of the plugins in the plugins folder are provided as zips. That makes it a bit difficult to search inside those sources and then view the sources.
I have an application that can search inside zips - it unpacks them temporally and then searches in those unpacked sources -, but that takes time and then I have to unpack the zip to view the found file in some editor.
Could we have at least an alternative version of the package that contains already unpacked sources for the plugins? That shouldn't be too difficult to achieve.
I know I can write some script that unpacks all the zips, but till now I was too lazy to write one. I'll probably write one in the end if Jetbrains does not provide this alternative version.