@gumnos@mastodon.bsd.cafe @joel@gts.tumfatig.net It's a good test. I probably haven't used open mode since I started building #STEVIE from source back in the 1980s. Which of course I used on VDU terminals, not the paper ones. (-: The test for it being Bostic #nvi , in my experience, is whether it supports :qa . #vi