Implement --replace to easily try out wlmaker in an existing Wayland session

[probonopd]

It would be useful to have an easy(!) way to try out wlmaker, e.g., by a --replace argument to switch out whatever compositor is currently running with the launched wlmaker instance in an existing Wayland session.

[probonopd]

Apparently the following works (e.g, in Fedora KDE Live ISOs):

sudo systemctl stop display-manager.service
./appdir/usr/bin/wlmaker

[phkaeser]

Agree this be useful. I'm not sure this is well supported by Wayland, though => since the compositor is itself running the compositing service, there doesn't seem to be an easy way to "take over" compositing duties from another compositor.

(at least: libwlroots doesn't seem to offer that, and eg. sway or labwc as two of my references don't offer a --replace argument).

Workaround: Running wlmaker as a user-space will (should!) bring it up in window mode (in X11 and/or Wayland).

Does that address the "trying out" need?