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.
I created this project over the weekend, inspired by the infamous leaked text exchange[0] between Elon and Parag.
<a href="https://www.whatdidyougetdonethisweek.net/" rel="nofollow">https://www.whatdidyougetdonethisweek.net/</a><p>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<p>Just a fun project, feel free to poke around!<p>[0] <a href="https://twitter.com/TechEmails/status/1575598387335901190" rel="nofollow">https://twitter.com/TechEmails/status/1575598387335901190</a>