Get a working Ruby setup for free with one command

Hi! Have you been struggling to install Rails, Jekyll, Bundler, or some other Ruby gem? Or maybe you're an iOS developer trying to get your work done? You might also be an experienced developer who is new to macOS, or forgot how to set up a Mac from scratch? Have you been typing a bunch of commands, and trying to fix error after error?

I'm glad you found me! I wrote a script for you that will set up a complete Ruby development environment on your Mac, so you can finally move on with your life and get back to coding and learning.

Yes! It works on the latest M1 Macs with the Apple Silicon chip!

To get my script, join my list below. It's free and you can unsubscribe at any time. I want to help you reach your goals faster and become a confident coder. Instead of blindly copying and pasting things until they work, you'll understand why errors happen and how to fix them.

By subscribing, you’ll also get access to the following:

What people say about the Ruby script

I can't thank you enough for this. The only resource that I have found to help this coding newbie. - Kathryn Hough


Thank you for writing and posting your script

After messing around trying to do something as simple as installing "asciidoctor" and being told that I lacked the "permissions" to do so (even using sudo or running as root ...)

I felt that I did need a way to escape Apple's "invisible hand" and your thinking on the matter – automated scripts and local directory – persuaded me to give your script a whirl.

Moncef ... watching your script run was a treat ... especially the "All done!" bit ... and the fact that asciidoctor is now operational.

Thanks again,



still my go to for getting my dev tools setup on a new machine - David


Need to set up a laptop for development? I used this script back in March and saved oh so much time. - Robbie


Sweet! Shell script which turns your Mac into an awesome web development machine. thanks @monfresh 👏 - Damian


Thanks @monfresh for saving me much time setting up my extra dev mbAir



A whole day spent trying to diagnose "mkmf.rb can’t find header files for ruby at /usr/lib/ruby/include/ruby.h", "Permission denied @ dirsmkdir - /Library/Ruby/Gems", take ownership of the /System/Library folder, reset ruby to a blank state, restore with time machine, and finally wipe ruby from my Mac altogether, and I finally come across a solution


Wasted 3 full nights trying to set up dev enviro after updating to OSX 10.8 + finally found this. THANK U @monfresh - Beth


just wanted to thank you for giving me the most painless clt/brew/git/rails install i've ever done. 10m! - Bianca