[omaranto]

This looks great! I think I have access to most of these features already, but for people who don't this seems like an easy way to get it all in one package.

Grouping browser tabs is of course already handled by browsers, or you can use a window manager like i3, with the added bonus that i3 tabbed containers aren't limited to putting only browser windows in the tabs, but can include native application windows too.

The ability to add links to anything in your to do list I get from Emacs's Org mode —and probably even better than what is shown in the demo gifs: there you see adding a task from a sentence in an email, but it doesn't look like that also stores what email it came from, in Org mode you can easily set things up so that kind of that context is tracked automatically for you.

What really made me think is the Paste Calendar Availability feature! I need that all the time and it had never occurred to me to automate it.