Why is the compiled Cocoa POD file large? Github has file size limits

Some developers wonder why the compiled Cocoa POD file is so large. Apple explains this in this article:

https://forums.developer.apple.com/thread/65422
`The size of your IPA produced by Xcode is not representative of the size of your app downloaded to a user's device. Depending on what features you select when uploading to the store, the IPA will contain a variety of supporting resources beyond the .app, such as symbol files and dSYMs for symbolicating crash reports delivered to you from the App Store. Additionally, depending on a variety of factors, the IPA you submit may contain machine code in addition to bitcode, but the app delivered to the end user only has the recompiled bitcode...`

It would also help if you understand the concept of slicing: 
https://developer.apple.com/library/content/documentation/IDEs/Conceptual/AppDistributionGuide/AppThinning/AppThinning.html

Finally, Github allows you work with large files. For more information, see: 
https://help.github.com/articles/distributing-large-binaries/

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