Your links. Are they only for Macs?
You asked — “Your links. Are they only for Macs?”
Yeah, they all run on the Mac OS X operating system. Usually requiring version 10.4 and up...
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But, the “concepts” are just as valid on other platforms. I’m sure that the software to do each of those tasks are available for other operating systems. It’s just a matter of finding the best one (of several) to do that particular task (as I listed up above). You can find that out, with dedicated research and asking questions on other forums (for computers...).