A guide to installing applications on Linux: 
When you want to try a new app on your phone, you open your app store and install the app. It’s simple, quick, and efficient. In this model of providing applications, phone vendors ensure that you know exactly where to go to get an app, and that developers with apps to distribute know where to put their apps so people can find them.
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Supporting Open Source.
Have you tried: Diving with Sharks?