I really wish there were more examples of 9p and Filesystem like apps. Suckless also had wmii window manager that I used for years, but then and now, there was very little examples of what the 9p interface looked like.

Chicken Scheme has a 9p module, that happens to have some real world examples, in Scheme. Scroll down a tiny bit: https://wiki.call-cc.org/eggref/5/9p#data-directory-listing

Really wish there were better references to share for this stuff. This still feels like one of the most user-empowering paths computing has to expose itself, utterly universal & already with some user-savy right there.