@somem@Shamar@grainloom@mmu_man@hansbauer If it can speak 9P (I haven't tried Jehanne yet, it seems like it's bearish on 9P) or it can speak to stdio, it can talk to the grid. I personally have set up a hubfs shell to talk to FreeDOS from inside acme (it *technically* worked, but wasn't super usable, for Reasons), so it's almost definitely possible to do something. mycroftiv even ported some of it to LP49.
@mmu_man@hansbauer@grainloom@Shamar@somem The way qemu's 9P support works is more of a driver that appears on the virtual network, I believe. Like it'll speak 9P to the guest OS, same as the SMB support. I could be wrong; I haven't used it, I usually just use the ethernet bridge.