6 years ago I set out to improve GNU Unifont, and finally after 6 years I have finished. It has MANY special Unicode symbols, including gender ones and plenty of technical ones. I use it as my IDE and terminal fonts on ALL my OSes. Oh and this time I fixed the link.
Also, "UnifontExMono.png" is both its own preview image as well as a proper build of the font for use cases where TTF and BDF are too big, like in character LCDs. I also do extensive documentation of my content so don't hate me.
Here's a link: UnifontEX
Logo:
The most prominent image on the page should appear as the link preview so adding the logo link to README.md could help; you can add an image and/or link to the repo in the post body.
I did do the Markdown image embed into the README, as well as a repo link and image in the body of the post, but regrettably Lemmy isn't making the actual post image work.