UnifontEX final build now released after 6 years
stgiga.github.io
stgiga.github.io
I also made a BDF (including beyond-Plane0 characters, and this would be useful for upgrading the Unicode support of retro Linux systems, among other things) and TTF2PNG version of it (that last one is only 1MiB but contains the entire font, so perhaps with a DEFLATE decoder chip, among other logic, you could use it as, let's say, a font ROM. Historically, the Panasonic 3DO Kanji ROM was 1MiB, so the file size is within historical size, and the glyph sizes are within NEC PC-98 limits of 8x16 and 16x16)
As for the interesting stuff here: you get support for emoji from 2018 and before (the heyday of Tumblr, so most emoji pronouns would work in this, and I'm saying this as a nonbinary person who uses Unicode pronouns as part of my set, but those aren't emoji), so that's helpful. Secondly, not all emoji is in Plane 1, so having Plane 0 too actually makes the emoji here complete. By extension, even the Unicode implementations of Wingdings+2+3+Webdings technically pull from Plane 0 in some cases. Additionally, having Letterlike Symbols AND Mathematical Alphanumeric Symbols at the same time makes certain "fancy fonts" you see online able to be properly covered. Oh, and the kaomoji support is excellent. You also get a LOT of technical symbols, both in Plane 0's multiple blocks of it, as well as the stuff in the emoji blocks that descends from the Wingdings family. Oh, and in combination with the Plane 0 gender symbols (there are actually some in Plane 0 for less-common LGBTQ+ contexts), there are quite a few characters in the Alchemical Symbols Plane 1 block which actually represent some of the symbols you see on LGBTQ+ Tumblr that may not even necessarily have been intended to pull from Unicode. Oh, and this applies to certain characters in Plane 0. Also, gender isn't the only aspect here. I've ran into plenty of characters in Unicode and UnifontEX that I or others didn't actually think were even in Unicode at all.
TL;DR: I modded GNU Unifont to make it even better over a span of 6 years.