Linux/Ubuntu Install Instructions:
Step 01: Install Git Ubuntu Server documentation | Ubuntu
Step 02: Sign up for https://github.com/
Step 03: Set up Git - GitHub Docs
Step 04: Generating a new SSH key and adding it to the ssh-agent - GitHub Docs
Step 05: Adding a new SSH key to your GitHub account - GitHub Docs
Step 06: Install node js
Use option one make sure to install the latest version
http://www.hostingadvice.com/how-to/install-nodejs-ubuntu-14-04/#node-version-manager
Check to see what the latest version is here Download | Node.js
Step 07: Open Terminal
git clone https://github.com/joshuef/beaker.git
cd beaker
git checkout SafePOC
npm install
npm run rebuild
npm start
Step 08: Any time you want to run the browser again all you have to do is open terminal
cd beaker
npm start
Note 01: If you want to do a fresh install. Delete the beaker folder and start at Step 07:
Note 02: Do not worry about any errors that appear.