Q:

OpenBox tiling keybindings

I'm running OpenBox on a Debian 10 Buster system and I would like to configure it to behave like a tiling window manager. I know OpenBox is a stacking window manager but since it is pretty well customizable I am sure we can make up something. However I don't how to do it.

A:

Don't expect OpenBox to behave like a tiling window manager, because as you said, it's a stacking window manager. However you can tweak it with some scripts to add some tiling WM functionalities. 
Have a look at pytyle (manual and GitHub page), zentile and Openbox-tiling. I never tried the last one but the first two scripts are working like a charm on my system. zentile is easier to install by the way:  just download the executable, make it executable on your system and add the line path_to_zentile/zentile_linx_amd64 & in your ~/.config/openbox/autostart file. You can change the keybindings in your ~/.config/openbox/zentile/conf.toml file.

