In https://github.com/NixOS/nixpkgs/issues/100119 pantheon's greeter
has g-s-d running which allows brightness controls via pkexec.
This is changed in newer versions of g-s-d (pantheon uses a fork currently),
but whenever brightness is changed with a shell of `shadow` we get
```
Oct 10 23:51:44 kirXps pkexec[18722]: lightdm: Executing command [USER=root] [TTY=unknown] [CWD=/var/lib/lightdm] [COMMAND=/run/current-system/sw/bin/elementary-settings-daemon/gsd-backlight-helper /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight 65587]
```
I'm not sure this should be strictly needed, so we should try to
revert later on when pantheon's g-s-d is updated.
This adds basically an indirection to systemPackages
to automatically install an interface for flatpak for their respective
environments. e.g if I enable pantheon and flatpak you'll get appcenter,
and on gnome you'll see gnome-software.
https://github.com/NixOS/nixpkgs/issues/99648#issuecomment-706691174
Nginx fails to start, because it can't read the certificate file. This
happens because PrivateTmp is set for the service, which makes the
system wide /tmp inaccessible.
When we redid the default apps we didn't add gnome-boxes for
rdp/vnc. (plus it doesn't really work well in nixos). With gnome-connections
we can now have this functionality, as file sharing is a default function
in g-c-c Sharing.
When I test a change e.g. in the module system manually, I usually use
`nixos-build-vms(8)` which also gives me a QEMU window where I can play
around in the freshly built VM.
It seems as this has changed recently when the default package for
non-interactive VM tests using the same framework was switched to
`pkgs.qemu_test` to reduce the closure size. While this is a reasonable
decision for our CI tests, I think that you really want a QEMU window of
the VM by default when using `nixos-build-vms(8)`.
[1] bc2188b083dfbbe749a221023e2960b60d4c8951
Instead of putting a README in the directory where the manual is
written, put the information from it straight in the docs themselves.
It's a bit untrivial to guess the manual is located exactly there for
contributers.
This should NOT be backported to 20.09!
When 21.03 is released, the DB changes are about a year old and
operators had two release cycles for the upgrade. At this point it
should be fair to remove the compat layer to reduce the complexity of
the module itself.
