Thank you for building it! This is super useful. I have always been frustrated with not having access to a clean calendar, given that I use mac os (for personal stuff) and windows (for work). Apple built-in calendar app and Outlook calendar for Windows are too clunky to use. cal -y is convenient if you have a terminal window open, which I often don't have . Most of the times when I need to do something with the dates I am on my browser and what you have built comes in handy.