Features:
+* report:
+ - should the list of metrics use JSON-SEQ? or maybe be wrapped in a json
+ array (the latter might be necessary, once we sign the combination)
+ - "io.systemd.Manager.unit_active_state" is a weird mix of CamelCase and snake_case
+ - metrics from pid1: suppress metrics form units that are inactive and have nothing to report
+ - how to plug facts into this? i.e. hostname, ssh keys, and so on
+ - switch to daan's suggested hierarchy?
+
* mountfsd: when looking for non-foreign uid owned inodes up the tree, stop at
mounts