Utility to communicate with sockets that send and receive lines of JSON using `<send …>` and `<recv …>` messages. Compatible with [mpv](https://mpv.io/), see [mpv.config-example.pr](./mpv.config-example.pr).
This utility serializes it's process environment to Preserves and prints it to stdout.
It can be used to feed the environment variables of a nested child of the Syndicate server back to the server. For example, to retreive the environmental variables that a desktop manager passed on to its children.