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This is a Sinatra Todo web application that supports multiple lists, each with its own set of todos. You can create/edit/delete lists, add/remove todos, mark items complete, and mark an entire list complete. The app stores state in the session (so it behaves like a real app without needing a database), sorts incomplete items first, and uses AJAX-friendly routes for a smoother delete experience.

Skills demonstrated:

•     Ruby
•     Sinatra
•     Sessions and state management (lists + todos stored in session)
•     REST-style routing (nested resources like /lists/:id/todos)
•     Validation and user feedback (error/success messaging)
•     AJAX handling (detecting XMLHttpRequest)
•     ERB templating + HTML/CSS