Ensure you have Android Studio, ant, and Node.js installed.

$ brew install node ant
$ brew cask install android-studio

Add these to your ~/.bashrc or ~/.zshrc:

export ANDROID_HOME=~/Library/Android/sdk
PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools

$ npm i -g cordova gulp

$ git clone https://github.com/btmills/convertify.git

$ cd convertify/app

$ npm i

$ gulp

$ cd ..

$ cordova build android

$ cordova run android