Features:
+* maybe add a tool that displays most recent journal logs as QR code to scan
+ off screen and run it automatically on boot failures, emergency logs and
+ such. Use DRM APIs directly, see
+ https://github.com/dvdhrm/docs/blob/master/drm-howto/modeset.c for an example
+ for doing that.
+
+* pass systemd-detect-virt result to generators as env var. Modifying behaviour
+ based on whether we are virtualized or not is a pretty common thing, hence
+ maybe just pass that info along for free in an env var. We cache the result
+ anyway, so it's basically free.
+
* systemd-repart: read LUKS encryption key from $CREDENTIALS_PATH
* introduce /dev/disk/root/* symlinks that allow referencing partitions on the