[machinestops]

Plan 9's cool ideas largely still haven't been surpassed or reimplemented.

https://doc.cat-v.org/plan_9/3rd_edition/rio/rio_slides.pdf

[yencabulator]

It's surprisingly hard to use 9P and get good performance because the design sort of inherently forbids caching for "real" file data. Trying to add that on top pretty much sacrifices the simplicity and starts looking a lot more like NFSv4.