So here is an interesting copyright question to ponder: are we allowed to redistribute binaries of open source software that have been compiled and signed by Apple?
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Recovery mode on Apple Silicon will only run Apple-Signed binaries, but that includes any random thing from macOS. You can just run /usr/bin/python from a macOS partition. But what if I want to use python without having a full macOS installed? Can I just redistribute those?
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Effectively: does merely compiling (without making any changes vs. published, freely-licensed open source code) an application create a derivative work? My understanding is no, because there is no originality involved in the process, it is purely mechanical.
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But this will be an interesting one to ask the lawyers, if we find that doing things this way would let us enable new ways of installing Linux.
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you can't create this binary with only the sources though, you also need a code signing certificate which is not covered by an open source license
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You can create the *binary* (as in the text section) with only the sources; only the binary code as in the processor opcodes and data is covered by copyright. Digital signatures and keys are not copyrightable AIUI.
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for some piece of software like Python specifically it may be more obvious as they print the license at runtime (Python: license() in the REPL) while I'd agree on it being a mechanical process, binary changes by new build system scripts (e.g. signing) might be less obviously so?
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I'm not convinced that signing itself creates a derivative work (as attaching a digital signature does not change the actual copyrighted software, and I don't think numbers that aren't creative expression i.e. digital signatures are copyrightable? but IANAL)
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