Dead Simple Tag CMS - Rails + js

I've had pain around managing and deploying 3rd party tags (tracking, marketing and conversion, and functionality such as live chat) at my last two companies. Now I'm doing something about it. I'm building a dead-simple tag management system that enables website owners to: 1) Deploy and change tags outside release cycles 2) Provide meta data and expiration dates to speed up pages by removing un-necessary tags 3) Provide a tag-centric view of a website - will show which tags are on which pages and which tags are used throughout the whole website ## Deliverables I've wireframed out the key states and have developed some specs that helps describe things that aren't 100% apparent from the wireframes. Take a read before bidding. I'm also happy to reduce scope to keep this project fast and inexpensive.