+* man: maybe use the word "inspect" rather than "introspect"?
+
+* introduce machines.target to order after all nspawn instances
+
+* systemd-nspawn@.service should fail if some nspawn arg is invalid, with Type=notify
+
+* "machinectl list" should probably show columns for OS version and IP addresses
+
+* systemctl: if it fails, show log output?
+
+* maybe add "systemctl edit" that copies unit files from /usr/lib/systemd/system to /etc/systemd/system and invokes vim on them
+
+* dbus: add new message hdr field for allowing interactive auth, write spec for it. update dbus spec to mandate that unknown flags *must* be ignored...
+
+* maybe introduce AssertXYZ= similar to ConditionXYZ= that causes a unit to fail (instead of skipping it) if some condition is not true...
+
+* remove multi-seat-x now
+
+* refcounting in sd-resolve is borked
+
+* exponential backoff in timesyncd and resolved when we cannot reach a server
+
+* apply start timeout during the "initializing" manager state only,
+ instead of both "initializing" and "starting". maybe rename the
+ timeout to "initialization-timeout" then or so?
+