* use syntax highlighting for Guile attachments
http://localhost:1234/issue/36487#2

* dark mode
I had to give up on this because the @media query =prefers-color-theme= does not work in icecat or chromium.
https://css-tricks.com/dark-modes-with-css/
https://mwichary.medium.com/dark-theme-in-a-day-3518dde2955a

* detect commits and linkify them
this should depend on per-package configuration

* enhance query input with JS
style known keywords to make it clearer what is a valid query keyword (like =date:=) and what isn’t

* MAYBE home page: present the newest issues first, and only open ones.
We currently show issues with recent activity (with the most recently touched issue first).  This seems fine.

* Mumi has no paging: It only presents one page of issues, but it
doesn't say how many are there in total nor does it page through all
other pages of issues.

* Add links to all tag queries (such as "easy")