Post a message to your twtxt file with no client
$ echo -e "`date +%FT%T%:z`\tHello world!" >> twtxt.txt
will add a row at the bottom of twtxt.txt
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FAQ
What’s twtxt?
This: https://yctct.com/twtxt.txt
personal computing command-line interface (cli) gnu linux trisquel shell literacy twtxt