![]() ![]() Th first thing you’ll want to do is run brew bundle dump on your Intel Mac. No need to worry though, reinstalling everything on M1 is easy, it just may take a bit of time. But if you’re trying to migrate from an Intel Mac you won’t be able to just move packages that were once in /usr/local over to /opt/homebrew. If you’re coming to M1 Mac fresh, without any old projects or profiles, you probably won’t notice Homebrew will work as it always has. So in the long run this is a positive change, but not without a few growing pains along the way. Other package managers have been using /opt/ for a while now.There are security concerns with using /usr/local/bin.Homebrew is not the only tool that installs things in /usr/local/bin and so the potential for conflicts has always been an issue.It could be possible to move everything back to /usr/local/bin in the future, but there are other reasons for sticking with /opt/homebrew even after the Intel Macs are long gone. This was written and shipped with heroic speed to help prevent strange issues with bleeding edge users on the first consumer Apple Silicon Macs. In #9117, we switched to a new prefix of /opt/homebrew for installations on Apple Silicon. The the main motivation for the change was to allow the transition from Intel to Apple Silicon. Since /opt/homebrew/bin is not included in your PATH by default, there is some extra configuration needed to allow you to use packages installed with Homebrew.
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