how to install OpenEmu on an offline-only Mac?

[checktext00]

how to install OpenEmu on an offline-only Mac?

[SiriusDarkblaze]

Unless you have another Mac available this would be a very difficult setup to complete because it will require you to manually download all the cores that OpenEmu needs as well as a few support files that OpenEmu needs. I have a way that I can create a blank library on my machine and give you a ZIP file to download and some terminal commands to process this but I am not sure if it will work.

[checktext00]

what about downloading the core plugins directly from github? I see for example that I can download the zip with Mupen64Plus.oecoreplugin from https://github.com/OpenEmu/Mupen64Plus-Core/releases directly. If that could work, could I choose which cores I download (like in RetroArch) instead of downloading all of them?

[Omega3komma3]

You should be able to download the core manually (or compiling it yourself) and then put it in
~/Library/Application Support/OpenEmu/Cores

[SiriusDarkblaze]

what about downloading the core plugins directly from github? I see for example that I can download the zip with Mupen64Plus.oecoreplugin from https://github.com/OpenEmu/Mupen64Plus-Core/releases directly. If that could work, could I choose which cores I download (like in RetroArch) instead of downloading all of them?

You would need to download all cores because a check when the system opens is if all cores exist and you would be in the same boat as you are now. The total size of all cores isn’t that big though.