You already spend your day at the desk. That's where the water should get logged.
Notchful lives in your MacBook notch. Hover to see today's progress. Click once to log a drink. Keep working.
Nothing to open. Nothing to unlock.
By the time you close your laptop, you've already hit your hydration goal without thinking about it.
History by week, month, and year. Goal and cup size in Settings. Everything else from the menu bar.