Features:
+* remove NSS usage from PID 1 (notably the specifiers)
+
* socket-proxyd:
- Support multiple inherited sockets mapped using different proxies
- Use a nonblocking alternative to getaddrinfo
- synthesize sd_bus_message objects from kernel messages
- properly implement name registry ioctls for kdbus
- implement monitor logic
+ - properly map matches with well-known names against messages with unique names
- longer term:
* priority queues
* priority inheritance