diff --git a/README.md b/README.md
index 8adf88e..e800270 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,15 @@
 # Dev computer set up
 
-### Main OSX setup
+## Main OSX setup
 
-```
-/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/newsdaycom/dev/master/osx_setup/dev_setup)"
+``` sh
+/bin/zsh -c "$(curl -fsSL https://raw.githubusercontent.com/newsdaycom/dev/master/osx_setup/dev_setup)"
 ```
 
-### GitHub keys
+## GitHub keys
 
 Generates and links your GitHub keys. Copy/paste the output from this into GitHub as your public key
 
-```
+``` sh
 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/newsdaycom/dev/master/osx_setup/github-keygen)"
 ```
diff --git a/osx_setup/dev_setup b/osx_setup/dev_setup
index 6c4ed60..1c89451 100644
--- a/osx_setup/dev_setup
+++ b/osx_setup/dev_setup
@@ -1,38 +1,47 @@
-#!/bin/bash
+#!/bin/zsh
 
 ## end setup on fail
 set -e
 
+echo "Installing Oh My ZSH"
+OVERWRITE_CONFIRMATION="no"
+sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
+echo "Oh My ZSH installed"
+clear
+
 echo "Installing Homebrew"
 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
 
 if [[ "$(uname -m)" == "arm64" ]]; then
     echo "Arm64 detected, adding homebrew to path"
-    echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.profile
+    echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zshrc
     eval "$(/opt/homebrew/bin/brew shellenv)"
-    source ~/.profile
+    source ~/.zshrc
 fi
-
-clear
-
-echo "Installing awscli, nodejs, python, cask"
-brew install --force awscli node@20 python cask
-brew upgrade --force awscli node@20 python cask
-echo 'export PATH=/usr/local/opt/node@20/bin:$PATH' >> ~/.zprofile
-source ~/.zprofile
-
-clear
-echo "Installing yarn"
-sudo npm i -g yarn
-
-echo "Install mysqlworkbench, firefox, sublime text, cyberduck, vscode, docker"
-brew install --cask --force mysqlworkbench firefox sublime-text postman cyberduck visual-studio-code docker
+echo "Homebrew installed and PATH configured"
+echo "Installing awscli, python"
+brew install --force awscli python 
+# i don't know why TC put this upgrade line in, but i'll keep it here just in case
+brew upgrade --force awscli python 
+echo "Installing mysqlworkbench, firefox, google-chrome, slack, studio-3t-community, postman, cyberduck, visual-studio-code, docker-desktop, zoom"
+brew install --cask --force mysqlworkbench firefox google-chrome slack studio-3t-community postman cyberduck visual-studio-code docker-desktop zoom
 clear
 
 brew doctor
 
-echo "Installing Oh My ZSH"
-curl -L http://install.ohmyz.sh | sh
 clear
-
-echo "Install complete!"
+# WE ARE USING NVM INSTEAD OF INSTALLING NODE THROUGH HOMEBREW BECAUSE
+# 1. NODE GETS A NEW LTS VERSION EVERY YEAR
+# 2. YOU DON'T HAVE TO COMPILE NODE FROM SOURCE WHEN YOUR MACOS VERSION IS UNSUPPORTED BY HOMEBREW
+echo "Installing nvm"
+bash -c 'curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash'
+echo "nvm installed"
+echo "Installing latest node.js LTS version and yarn"
+echo "yarn" >> ~/.nvm/default-packages
+nvm install --lts
+echo "Node.js LTS and yarn are installed"
+
+echo "config npm to silence npm update notifier"
+echo "update-notifier=false" >> ~/.npmrc
+echo "npm configured"
+echo "Install complete, restart your shell and/or system!"
diff --git a/osx_setup/github-keygen b/osx_setup/github-keygen
index 462add7..6a92227 100644
--- a/osx_setup/github-keygen
+++ b/osx_setup/github-keygen
@@ -8,7 +8,7 @@ CONFIG_FILE=$CONFIG_PATH/config
 
 mkdir -p $CONFIG_PATH
 
-ssh-keygen -t rsa -f ~/.ssh/$KEY_NAME -q -P ""
+ssh-keygen -t ed25519 -f ~/.ssh/$KEY_NAME -q -P ""
 
 echo "Host github.com
 	User git