Sorry if my previous post sounded a bit rude, you might have point, yet sometimes mac-requests are similar to "when-update", "android-links" spamming in various threads.
I dont use mac, yet i have packed more than few mac renpy versions, and yep that is a pretty easy thing to do with
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.
The other work-around should be to download pc-version, and use libs from your old mac-version of the same game.
There are few more solutions, some of it you have tried already, as it seems.