carloocchiena/flask_SQLite_full_stack_python_template ? reverse-engineered prompt

Build me a small Flask web app where someone can open a page, type in a username, and submit it through a simple form. When they save it, the app should store the username in a local SQLite database along with today’s date and an auto incrementing ID.

I also want a simple admin page where I can see all saved users in a clean table. Keep it lightweight and easy to run locally, with the usual Flask project structure using templates and static files. If you need to check current Flask or SQLite setup details, look up the latest docs online.

Please make it feel like a learning project, so keep the code easy to understand and straightforward to extend later. If anything is missing, fill in sensible defaults and make the whole thing work end to end with a nice basic UI.