A Mac build has now been posted, though I have to emphasize I do not have the means to test if it works or troubleshoot it if it does not! The engine I use apparently is pretty spotty with Mac support and that OS is outside of my scope of experience. I do wish I had a Mac so I could fuss with it more, since I would like it to just be a smooth deploying thing regardless, but fate says otherwise. If you could let me know if it works though, I would appreciate it, so I know whether to keep the build available or not? Or, if you'd just rather not bother with it, feel free to let me know too for the same reason.
Another possible trail that could be tried is a like, an independent launcher? I was doing some research and I saw this on the rpgmakerweb forums, though like above I can't perform any tests on it or say anything about how well or unwell it works; just sharing what I turned up in 10 minutes of sniffing around:
https://forums.rpgmakerweb.com/threads/rpg-maker-launcher-for-macos-osx-3-3-3.17...
Part of its operation is giving permission to the OS to run a like, unverified app, and I don't know how comfortable / uncomfortable a Mac user would find that, but it's a possible solution if you end up interested in more RPG Maker games.