On Arch (which I’m kindof in the process of migrating away from, but anyway), I tend to use the version of vi that is pre-installed as part of the base system. And it segfaults not terribly infrequently and the fact that that hasn’t been fixed yet in all the years I’ve been using Arch makes me think it almost has to be unmaintained.

I prefer something lighter than Vim, and that fits the bill. I used something called “nvi” at one time in the past, but it had some annoying quirks as well. On non-Arch systems, I just use Vim.