Neovim

Configure Neovim as the default Editor

Add this to your configuration.nix

environment.variables.EDITOR = "nvim";

Set Neovim as vi and vim

Add this to your configuration.nix

 nixpkgs.overlays = [
   (self: super: {
     neovim = super.neovim.override {
       viAlias = true;
       vimAlias = true;
     };
   })
 ];

Alternatively you can use the neovim module (merged in september 2020).

 programs.neovim.enable = true;
 programs.neovim.viAlias = true;

Note on errors using default `packages` for plugins requiring Lua modules

Due to how the `runtimepath` for Lua modules is processed, your configuration may require `packadd! plugin-name` to require a module. A home-manager example:

 programs.neovim = {
   plugins = [
     {
       plugin = nvim-colorizer-lua
       config = 
         packadd! nvim-colorizer.lua
         lua require 'colorizer'.setup()
       ;
     }
   ];
 }

To build neovim master

Use the official documentation: https://github.com/neovim/neovim/wiki/Building-Neovim#nixos--nix The neovim repository now contains a flake so you can run the master version via `nix run github:neovim/neovim?dir=contrib`

There is also an overlay available: https://github.com/nix-community/neovim-nightly-overlay

See Also

Vim