I watched the video on the site and this looks like absolute hell, as someone who uses drag-n-drop between programs fairly often.

I'm also someone whose open browser tabs tend to grow indefinitely until I just have to bookmark and close all hundred of them or whatever, so... yeah, this entire paradigm looks extremely not for me.

> this looks like absolute hell, as someone who uses drag-n-drop between programs fairly often

The way people use it is you constantly reorder windows according to your workflow so DnD is not a problem.

> I'm also someone whose open browser tabs tend to grow indefinitely until I just have to bookmark and close all hundred of them or whatever

I agree the tab model is an horror. The problem is for most people the tabs are their browsing history, with a visual clutter.

My guess is there is an huge opportunity for rethinking the whole web browser history/tab model.

Another thing I hate especially in firefox is that one can't pin tabs on the right, next to the newest tabs and the new tabs button. So often one has to keep one or two tabs open but otherwise open many new ones to research something.

> I'm also someone whose open browser tabs tend to grow indefinitely until I just have to bookmark and close all hundred of them or whatever, so...

You might like the tabstash browser extension

I had something Very similar when I used i3.

I had some hacked together python that allowed me to yank a window in and out of the stack by name and stashed a window that was the oldest in the stack (basically an LRU cache for windows)

It "worked" but I would really have enjoyed paperwm when I was in college.

There are some things that only floating WMs do right. I have a bad habit of enjoying having a few floating (pinned) copies of a document on my screen at a time in different places to cross-reference without having to move around much.