todo make UI pretty landing page that explains what's going on done tokens should be unique per user unique watermark for the app add link to subscribe to the feed deploy to production associate domain with production deployed app purchase domain fully integrated authentication login state should be distinct from logged out state endpoint for uploading a new tweet authenticated via token which was exchanged for login PCD environment variable for deployed url environment variable for private key ui for creating a new tweet image field title field text field persistent storage for tweets on the backend probably just redis kv logout