I haven't figured out Texinfo 7.0 but I got 6.8 installed using NetBSD pkgin and I can produce Chinese script writing on output formats: info and html, but not pdf. I sent an email to the East Asia Institute in the hope they know how to integrate Chinese TeX and Chinese fonts for the GNU Texinfo project.
Neat little idea though. Very cute.
You can text updates on things you get done throughout the week, and then generate a (.PNG) text conversation with Elon Musk stating what you got done
Just a fun project, feel free to poke around!
[0] https://twitter.com/TechEmails/status/1575598387335901190