I'm a long time (20+ years) vim user, and neovim doesn't fit my use case. I've tried it, most recently today, to have a look at LSP and treesitter. Treesitter added different syntax colors, but the result wasn't necessarily better than vanilla vim. More like an overly decorated christmas tree. LSP and other "make it into an IDE" I usually turn off after a few minutes, it's more of a hindrance than a help. I mainly co…
I'm working on a project that might allow at least 90% or higher compat here: https://github.com/tjdevries/vim9jit
Of course, vim9script isn't complete yet, so the spec isn't all the way done, but it may someday be possible to run them in neovim.
Additionally, if someone actually just wanted to port all the C code to run or has some other way to make vim9script run, neovim is not opposed to making that happen.