Quality bar
Choose the project whose behavior you can verify with information you already have. A first build is done when its central task passes a simple test.
or
Option 1
You want immediate feedback and have no content to prepare.
Choose the study timer. Run, pause, reset, and finish a short countdown while watching the display.
Its expected behavior is observable without sample data. If the timer continues after Pause or goes below zero, you have a precise correction to request.
or
Option 2
You have event details and mainly need to present them clearly.
Choose the event page. Check the date, venue, and contact link on both a phone and a larger screen.
The quality bar is readability and factual accuracy, not the number of animations or sections. Do not publish invented details as placeholders.
or
Option 3
You enjoy checking numbers and can supply a sample recipe.
Choose the recipe scaler. Compare its output with hand-calculated half and double batches.
A calculator gives you concrete pass-or-fail cases. Vibe coding can draft the interface, but you still need to check its arithmetic and handling of unusual inputs.