feat: make neovim config from scratch

nixos/home/.nvim/base.vim

@@ -0,0 +1,8 @@
+" make tabs only 2 spaces
+set tabstop=2
+set shiftwidth=2
+set expandtab
+set smartindent
+
+set number
+set relativenumber

nixos/home/.nvim/config.lua

@@ -0,0 +1,2 @@
+vim.opt.fillchars = {eob = " "}
+vim.cmd[[colorscheme dracula]]

nixos/home/.nvim/lsp.lua

@@ -0,0 +1,3 @@
+local lspconfig = require('lspconfig')
+lspconfig.bashls.setup {}
+lspconfig.nixd.setup {}

nixos/home/main.nix

@@ -27,6 +27,7 @@
       ./dotfiles.nix
       ./packages.nix
       ./misc.nix
+      ./nvim.nix
     ];
 
     home.stateVersion = "23.05";

nixos/home/nvim.nix

@@ -0,0 +1,62 @@
+# https://breuer.dev/blog/nixos-home-manager-neovim
+{ config, pkgs, lib, ... }:
+let
+  # installs a vim plugin from git with a given tag / branch
+  pluginGit = ref: repo: pkgs.vimUtils.buildVimPluginFrom2Nix {
+    pname = "${lib.strings.sanitizeDerivationName repo}";
+    version = ref;
+    src = builtins.fetchGit {
+      url = "https://github.com/${repo}.git";
+      ref = ref;
+    };
+  };
+
+  # always installs latest version
+  plugin = pluginGit "HEAD";
+in {
+  programs.neovim = {
+    enable = true;
+    package = pkgs.neovim-nightly;
+
+    # read in the vim config from filesystem
+    # this enables syntaxhighlighting when editing those
+    extraConfig = builtins.concatStringsSep "\n" [
+      (lib.strings.fileContents ./.nvim/base.vim)
+    #  (lib.strings.fileContents ./.nvim/plugins.vim)
+    #  (lib.strings.fileContents ./.nvim/lsp.vim)
+      ''
+        lua << EOF
+        ${lib.strings.fileContents ./.nvim/config.lua}
+        ${lib.strings.fileContents ./.nvim/lsp.lua}
+        EOF
+      ''
+    ];
+
+    extraPackages = with pkgs; [
+      # used to compile tree-sitter grammar
+      tree-sitter
+
+      # https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
+      nodePackages.bash-language-server
+      shellcheck
+      nixd
+    ];
+    plugins = with pkgs.vimPlugins; [
+      # you can use plugins from the pkgs
+      vim-which-key
+      clangd_extensions-nvim
+
+      nvim-treesitter.withAllGrammars
+      nvim-treesitter
+
+      # or you can use our function to directly fetch plugins from git
+      (plugin "hrsh7th/nvim-cmp") # completion
+      (plugin "neovim/nvim-lspconfig")
+      (plugin "Mofiqul/dracula.nvim")
+      (plugin "nvim-neo-tree/neo-tree.nvim")
+
+      # this installs the plugin from 'lua' branch
+      (plugin "lukas-reineke/indent-blankline.nvim")
+    ];
+  };
+}

nixos/home/packages.nix

@@ -124,7 +124,6 @@
     grim
     slurp
     swappy
-    neovim
     fontfor
     qt5ct
     lxappearance