Home Page: Modern design with dark background, use channel colors probably
if user is logged in Simple List View system, bottom list option is '+Link new account' This is where you can view all linked accounts (url should be 'social-link.com/$username/edit') Each list item is clickable and editable
Account access at top right (clickable image, grabbed from google account)
Account Settings
Logout
else simple login with google or create account button, center justified
Link New Account: Pop Up window, with list of compatible platforms Also add custom option at bottom for users to add lesser known websites / accounts
Other: Maybe add API for GET actions