What is and why neovim?

Here’s a pretty well-written treatise on why Vim needs improvement.

Features above Vim:

Asynchronous script running (meaning scripts can run as you are editing).
Lua scripts for addons and config.
Richer addon library: addons are supposed to be easier, so it seems like more devs produce addons for Neovim.

Install instructions

Neovim probably isn’t default on your machine. I’ve walked the route of compilation from scratch, and found it wasn’t so hard.

My install script is in setup/install_neovim.sh in the ubuntu branch in my github dotfiles. For Manjaro, you simply need to use pamac build neovim.