I’m building “daily-rhythms,” a lightweight tool that helps busy professionals log their moods, keep tabs on key habits, and spot patterns that might otherwise go unnoticed. At this stage I need an MVP that does three core things: • Let users record mood entries and mark off daily habits in seconds, preferably from both desktop and mobile. • Store data securely and generate clear daily, weekly, and monthly visual summaries. • Offer basic export or backup (CSV or similar) so the information never feels locked in. You’re free to recommend the tech stack you feel is quickest to ship and easiest to maintain—whether it’s a small React/Flutter front-end talking to Firebase, a Django or Node back-end with a responsive web UI, or something else lean and modern. What matters most is a clean interface, solid data model, and code that I can extend later for features like AI-based suggestions. Acceptance criteria before sign-off: 1. A working demo deployed to a test environment I can log into. 2. Source code with brief setup instructions. 3. Short loom-style walkthrough showing the main flows (adding a mood, checking a habit, viewing a trend chart). 4. No hard-coded credentials; environment variables documented. If the above suits you, tell me how you’d tackle the build and roughly how long the first version would take.