If any of you got Plan 9 running on SDF VPS or on any local instance, I recommend having a look at uriel's slides:
9fs 9front.org && cp /n/9front.org/extra/uriel.slides.tgz /tmp/
They have a lot of quick details on Plan 9's history, plus comparisons with Unix and Linux.
I read the recover(4) paper long ago but was never able to find the source code. Until tonight! It's at 9front.org/extra/recover4e.tgz (over 9P). Looking forward to experimenting with it... #plan9 #sdf #bootcamp2020