- https://en.wikipedia.org/wiki/Plan_9_from_User_Space
- https://github.com/9fans/plan9port
- https://9fans.github.io/plan9port/man/man1/intro.html :
do not put the Plan 9 utilities’ directory a the beginning of your PATH!
“9base is a port of various original Plan 9 tools for Unix, based on plan9port“:
Optware-ng one my Synology NAS has a 9base package:
root@DiskStation $ ipkg files 9base /opt/lib/9base/bin/... /opt/lib/9base/lib/... /opt/share/man/man1/...