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Universal packages
 are a new concept for Linux, and are intended to be a single 
package format that multiple distributions recognize. The idea is that a developer 
only has to compile one package (instead of a separate package for each distribution) 
and users would only need to download a single package regardless of their chosen 
Linux flavor. The next section will discuss a type of universal package called Snaps.
Snap packages
As it stands today, developers would need to create multiple package types to 
support Linux. Perhaps they'll create Debian packages for Debian itself and Ubuntu, 
and then RPM packages for CentOS, Red Hat Enterprise Linux, and SuSE. And while 
you may think that having to create two package types isn't all that bad, consider 
that each of the RPM-based distributions needs its own specific RPM package, and 
you can see how it might be tedious to a developer to have to create five or more 
different packages for any one release of their software.
As a result of this, there's a push to adopt a single package format that each 
distribution can install that is independent of the system package type. This concept 
is known as