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auto-dark-emacs
Auto-Dark-Emacs is an auto changer between 2 themes, dark/light, following MacOS, Linux or Windows Dark Mode settings
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InfluxDB
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
I think it depends on how you installed your Emacs. I know for sure that you could do something like that with this variant of Emacs for macOS as explained here: https://github.com/d12frosted/homebrew-emacs-plus#system-appearance-change
This is what https://github.com/LionyxML/auto-dark-emacs does, + Linux & Windows support.
It's called switcher (link with a demo). There is one for Wayland and other for Xorg in the repo. Since both scripts uses symlinks, I'm sure you could use one as a base to achieve a similar behaviour in MacOS if you wish.
There is the code to do just that. Works with emacs-mac and emacs-plus.