It’s up to the front end, in this case wefwef, to implement it.
Your best bet would be to reach out to the app developer.
I just took a look at the source and unfortunately they aren’t using markdown-it, so they can’t use the same markdown-it-ruby package that the official Lemmy front end is using.
For those who are unaware: A couple billionaires, a pilot, and one of the billionaires' son are currently stuck inside an extremely tiny sub a couple thousand meters under the sea (inside of the sub with the guys above)....
Lemmy supports ruby annotations (furigana) in markdown as of 0.18.1: {学校|がっこう}
You can now use furigana in your posts via the DenDen Markdown syntax for furigana. If you write the following...
This is what the United States looks like if you scale states by population (lemmy.world)
An app icon based on the current icon design and somewhat inspired by Ivory (res.cloudinary.com)
Higher quality PNG here....
I'm definitely seeing the benefits of belonging to a smaller Lemmy instance today.
I’ve gone and made accounts of a handful of Lemmy instances, all of them larger, more popular ones....
Do you think the guys on the titanic submarine will be rescued? (lemmy.world)
For those who are unaware: A couple billionaires, a pilot, and one of the billionaires' son are currently stuck inside an extremely tiny sub a couple thousand meters under the sea (inside of the sub with the guys above)....
This is a test. (example.com)
Can posts have a body and a URL?...