More than 10 years ago I ran one by fgb named "equis". Only reference I can find quickly is here https://plan9.io/wiki/plan9/x11_installation/index.html https:

More than 10 years ago I ran one by fgb named "equis". Only reference I can find quickly is here https://plan9.io/wiki/plan9/x11_installation/index.html https://plan9.io/wiki/plan9/x11_installation/index.html I used it with the linux emulation layer someone was building to run Mozilla on Plan 9, but none of those were continued as far as I know.