Thank you for your kind words. I wouldn't call it high-quality, though. I wrote this back when I barely knew how to wield Lisp or use Emacs. I've gained much more experience in both since then; I keep promising myself that one of these days, I'll clean it up and make it a stellar little mode...
As for getting it into mainline, I'd be OK with going through the FSF copyright paperwork, but I worry this will probably fail over the uncertain status of Nyan Cat image/music IP...
> I worry this will probably fail over the uncertain status of Nyan Cat image/music IP...
That’s how MooGNU was born: https://archive.org/details/M00GNU
Was surprised how high quality the repo is, too!
https://github.com/TeMPOraL/nyan-mode
It even has an accompanying blog post, which I found informative. http://jacek.zlydach.pl/blog/2011-08-25-introducing-nyan-mod...
And even a Show HN. https://news.ycombinator.com/item?id=2906632