tw(1) is a simple twtxt client for Plan 9 written in rc. It consists of a set
of tools to retrieve feeds from accounts you follow, generate a
unified timeline from them, read that timeline, and write updates to
your own feed. Typical usage might look like:

        :; tw/w 'Hah... my silly twtxt client now has "stories" mode.☺'
	:; tw/mktl -p # This can live in cron.
	:; tw/r
	http://a.9srv.net/tw.txt	2021-02-14T01:25:30-08:00
	  Hah... my silly twtxt client now has "stories" mode.☺

Configuration for the installation lives (somewhat awkwardly) in the
executable directory in a file "lib". By default, just put a list of URLs
you'd like to follow, one per line, in $home/lib/feeds and create a
dummy $home/lib/web/tw.txt (a dummy example is included).

See the man page for more info; 'nroff -man tw.1'.