Firstly by copying, pasting and editing the xsessions desktop file from
icewm to lwm I have been able to get XDG_CURRENT_DESKTOP=lwm into
systemd, without any other files. I can see that this is the cleanest
method. That said I infer from what I saw that every display manager is
doing its own thing here and that is surely less than ideal.
I have played a bit with setting up lwm-portals.conf but at the moment I
more interested in trying to see if I can lock it down than write
something I would expect to be in a default Debian config. I found the
man page for portals.conf a bit confusing here. I have put the file in
/usr/share/xdg-desktop-portal/lwm-portals.conf but there also seem to be
implementation files in /usr/share/xdg-desktop-portal/portals and I find
that a bit confusing.
Secondly I saw a youtube video saying that discord totally ignores
sandboxing so I won't be using that for testing. I have played about
with GNOME recipes and ASHPD demo and I am still not seeing much
difference. From what I can see they are just following UNIX permissions
with no additional sandboxing.
or the portal tests
built by src:libportal (install libportal-tests-gtk3 and
libportal-tests-gtk4 and run with "GTK_USE_PORTAL=1 GDK_DEBUG=portals" in
the environment, or you can build them into Flatpak apps from the source
package). Those are a lot more meaningfully sandboxed.
I am still trying to understand what is being suggested here. Working on
it. I can say that if I try to build xdg-desktop-portal I get some test
failures:
9/28 xdg-desktop-portal:portals / test-portals-location
ERROR 26.28s killed by signal 6 SIGABRT^M
12/28 xdg-desktop-portal:portals / test-portals-openuri
TIMEOUT 30.01s 9 subtests passed
but I don't think I had read the suggestion correctly when I tried this.
