Graphical program from terminal doesn't create a new window

Notice that in 9front the graphical program "takes over" the current window instead of opening a new one.

https://www.youtube.com/watch?v=4a02IUvg-js

Is there a way to do this on standard Linux?

>>12
Just tried this out, applied the patch overtop of my local dwm branch. It's pretty awesome. Wasn't working right away, but realized I had to pass in -DSWALLOWING to the preprocessor and link in some extra xcb libs.

Now mupdf, feh, web browser, etc. aren't as annoying to use.

Very nice.