NixOS has a nice module that can be easily enabled. After that default DE durden can be invoked with single command and can be interacted with as a normal VM/Window alongside your existing DE.
Admittedly I haven't tries making it my default yet, but seemed fairly well adaptable for tiling WM/Openbox needs.
Admittedly I haven't tries making it my default yet, but seemed fairly well adaptable for tiling WM/Openbox needs.