Homebrew For Mac M1

One of the reasons I took the plunge and bought an M1-based Mac is to test out its performance and suitability as a developer. An essential developer application on the Mac is Homebrew, the “missing package manager for macOS.” Although you cannot install Homebrew today to manage ARM-compiled packages, you can install Homebrew in the Rosetta environment and leverage the x86 packages.

I can’t take credit for coming up with the idea, that would go to OSX Daily, but I have a few improvements to share. I’m going to use iTerm2, and so should you.

Right click on your iTerm application icon and select Duplicate. Rename iTerm copy to something like iTerm x86 or iTerm Rosetta.

I've seen three main ways that people are installing homebrew on their M1 Macs. The best method of install should be as smooth as possible while emulating intel architecture, and also should be as easy as possible to switch homebrew to native architecture when that is possible. Install Homebrew¶. MacOS does not include the Homebrew brew package by default. Install brew using the official Homebrew installation instructions.; Installing MongoDB 4.4 Community Edition¶. Follow these steps to install MongoDB Community Edition using Homebrew's brew package manager. Be sure that you have followed the installation prerequisites above before proceeding. MacOS Homebrew running natively on M1/Apple Silicon/ARM has partial functionality. We recommend installing into /opt/homebrew and forbid installing into /usr/local (to avoid clashing with the macOS Intel install and allow their usage side-by-side). We currently recommend running Homebrew using Intel emulation with Rosetta 2. In this video, I'll show you how to install Homebrew on an Apple Silicon Mac. Homebrew currently doesn't officially support Apple Silicon, so you either have.

Now, right click on your new iTerm icon and click on Get Info and then check Open using Rosetta.

Open your iTerm Rosetta application and install Homebrew! Once installed you should be able to use brew install in the iTerm Rosetta application and use those installed packages seamlessly between the two environments. You won’t, however, be able to use brew install in your arm64 iTerm application (you’ll get Error: Cannot install in Homebrew on ARM processor in Intel default prefix).

Keeping Track

If you’re working in both x86 and ARM environments on your M1 Mac it is easy to lose track which iTerm you are in. We can use a little zsh-foo to help us out. Add the following snippet to the end of your ~/.zshrc:

Shell

123456_ARCH<img src='https://4.bp.blogspot.com/_annTPGBcsB4/TUUN3b67rJI/AAAAAAAAEMg/YyN2UDg_JnA/s1600/IMGP7488.JPG' alt='Homebrew For Mac M1' title='Homebrew For Mac M1' />=$(arch)PROMPT='$_ARCH $PROMPT'# Requires iterm2<img src='https://i1.wp.com/www.macobserver.com/wp-content/uploads/2019/05/workfeatured-terminal.png?resize=350%2C200&ssl=1' alt='Mac install brew' title='Mac install brew' />if[['$_ARCH'i386']];thenecho-ne<img src='https://cdn-0.macobserver.com/wp-content/uploads/2021/02/Homebrew.jpg?ezimgfmt=ng%3Awebp%2Fngcb11%2Frs%3Adevice%2Frscb11-2' alt='Homebrew For Mac M1' title='Homebrew For Mac M1' />'033]1337;SetColors=bg=0071C5007'fi<p>This little snippet takes advantage of iTerm2’s custom escape codes by setting the background to Intel blue if the <code>arch</code> command returns <code>i386</code> (which it does if running in Rosetta).</p><p>We can do one better, however, by changing our iTerm Rosetta icon. Create your own icon, or, right-click the image below and select <strong>Copy Image</strong>. Then right-click your <strong>iTerm Rosetta</strong> application and select <strong>Get Info</strong>. In the upper-left click on the icon until you see a highlight around it and then paste the new icon image (Command-V).</p><p>Launch your <strong>iTerm Rosetta</strong> application and it’s much easier to distinguish between it and your “native” version.</p><div><h3><em>Related</em></h3></div><p>Every developer knows about the Homebrew package manager that makes it really easy to install, update applications, and utilities on a Mac. The installation of homebrew remains the same for the new macOS version BigSur, but we will explain how to it anyway in this article.</p><h2>Homebrew Apple M1</h2><h3>Note for ARM processors users</h3><p>If your Mac uses the Apple Silicon (M1 Chip), you will have a problem with the installation till the date of publication of this article. You can read in this another article how to solve the issue of Homebrew that doesn't run on the M1 chip.</p><p>If your processor has an Intel-based processor, then you can follow the tutorial without any inconvenience (which is short anyway).</p><h2>Installing Homebrew</h2><h2>Macbook M1 Brew</h2><p>Start by opening the Terminal and start the homebrew setup by simply downloading the installation script of homebrew with curl and then running it with bash. You can easily do this with a single command like this:</p><p>The installation script does a variety of stuff as setting the installation directory and so on. After running the command, the terminal will probably prompt for your password if it's required. Then, the installation will take a while and once it finishes, you can easily verify if it works running the following instruction:</p><p>The command should generate the following output:</p><img src='https://code2care.org/howto/install-homebrew-brew-on-m1-mac/images/Installing homebrew M1 Mac.png' alt='Mac' title='Mac' /><p>Happy coding ❤️!</p><br><br><a href='https://netlify.mix-goapp.com/entropy-for-mac.html#lKdvFAq=XFJERVoEWFwBQVYECFJWAVsKAQ9NDVgJAFpDVkMZV1xKSF9WWklcCE8FUwAUUk8WRQ1RRQAIHAkEWxoBGB4EHQpTAAYVVx0LT1EMHG0xT14HWxhZBBFbDQNBH1JEQh0fTAZKQ0pHAlhGBwNi' target='_blank'><img src='https://cdn-ak.f.st-hatena.com/images/fotolife/r/ruriatunifoefec/20200910/20200910011337.png' style='cursor:pointer;display:block;margin-left:auto;margin-right:auto;'></a><br><br></p>
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