How do I switch to a new computer, saving all my settings

The question is also about VSCode. I want to transfer all settings and plugins from mac OS to another computer (Windows). Is there a simple (automated) way to do this?

No idea about VSCode settings. For PlatformIO, it will suffice to do a fresh install of PlatformIO on the new computer and then override ~/.platformio with the ~/.platformio folder from the old computer. You should probably backup all your projects too. If your projects refer to your Arduino library installation via lib_extra_dirs, backup those too.

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