arigato is a very barebones Rust framework for creating and serving a 9p
filesystem. Running on port 564 is customary; you may need to use setcap
or iptables or something to route traffic to your binary.
This currently only supports 9P2000.u; but that may change in the future.
This uses nightly-only features and isn't documented. Most of this was written
fairly quickly and carelessly to implement debugfs but I may keep this up
to date over the next few years.