Right now, using vim is better than using this new editor (vis), although vis is close to being substantially better than vim.

I use the suckless window manager (dwm) and terminal (st), so gave vis a try for a couple days. Three vim plugins made me return: git-gutters, you-complete-me (ycm), and clang-format.

It is hard to extend vim's functionality. Its plugin interface has issues. Because of that, ycm and git-gutters can not be used at the same time, and something that ought to be straightforward like exposing clang's autocomplete information requires a considerable engineering effort (ycm) spanning three languages and about as much code as vis is total.

Giving vis good extensibility would be easier than fixed vim's plugin interface (sorry neovim). My personal preference for doing this would be a patch to vis that adds vim like gutters and dropdowns, and then patches that require this one and add specific things like ycm and git-gutters. A reasonable programmer could disagree and prefer out-of-process plugins. Either approach being implemented well would be very exciting.