'How to create *.app and *.ipa files manually

Is there a way to create this two type of files manually, on a linux computer? I am reading about this file formats, and found this description of the *.ipa format:

https://en.wikipedia.org/wiki/.ipa

describing the directory structure and compression method for it. I do not found a description like that for the *.app file format (only this: https://fileinfo.com/extension/app).

Supose for a moment that using cross-compilation, I generate executable files for the platform arm, for instance. If I manage to manually create the *.app file, and put this file inside a manually generated *.ipa file, than I could have an unsigned executable possible to be installed on my iphone using an application like the Cydia Impactor?

Anyone knows if all this is possible? If so, how could be done?



Solution 1:[1]

U cannot create a .app or .iapp file in linux. U require a Mac for that.

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Source: Stack Overflow

Solution Source
Solution 1 Arnav Singh