Follow these instructions to make start.me the homepage on your Chromebook:
Step 1: Open Your Chrome Browser on Your Chromebook and Select Options
Step 2: Select the Settings Option in the Drop Down Menu
Step 3: Search for Startup Settings
Step 4: Type in "Startup" In the Search and Click on "Set Pages"
Step 5: Type https://start.me as the URL
Step 6: You're done!
See the video below for how to set https://start.me as the homepage on your Chromebook: