Massive improvements to Neovim Configuration

config/system/neovim.nix

@@ -2,17 +2,64 @@
 
 let
   plugins = pkgs.vimPlugins;
+  inherit (import ../../options.nix) theme;
 in {
   programs.nixvim = {
     enable = true;
 
+    plugins = {
+      telescope.enable = true;
+      airline = {
+	enable = true;
+	powerlineFonts = true;
+	theme = "tomorrow";
+      };
+      comment-nvim.enable = true;
+      lsp = {
+	enable = true;
+	servers = {
+	  tsserver.enable = true;
+	  lua-ls.enable = true;
+	  rust-analyzer = {
+	    enable = true;
+	    installRustc = true;
+	    installCargo = true;
+	  };
+	  nixd.enable = true;
+	  html.enable = true;
+	  ccls.enable = true;
+	  cmake.enable = true;
+	  csharp-ls.enable = true;
+	  cssls.enable = true;
+	  gopls.enable = true;
+	  jsonls.enable = true;
+	  pyright.enable = true;
+	  tailwindcss.enable = true;
+	};
+      };
+      treesitter.enable = true;
+      nvim-cmp = {
+	enable = true;
+	autoEnableSources = true;
+	sources = [
+	  { name = "nvim_lsp"; }
+	  { name = "path"; }
+	  { name = "buffer"; }
+	];
+	mapping = {
+	  "<CR>" = "cmp.mapping.confirm({ select = true })";
+	  "<Tab>" = {
+	    action = ''cmp.mapping.select_next_item()'';
+	    modes = [ "i" "s" ];
+	  };
+	};
+      };
+    };
+
     extraPlugins = [
-      plugins.telescope-nvim
-      plugins.rose-pine
-      plugins.nvim-treesitter
-      plugins.nvim-treesitter.withAllGrammars
+      plugins.vim-airline-themes
+      plugins.nvim-base16
     ];
-    colorscheme = "rose-pine";
 
     globals.mapleader = " "; # Sets the leader key to space
 
@@ -24,6 +71,12 @@ in {
       end)
     '';
 
+    extraConfigVim = ''
+      set noshowmode
+      set showtabline=2
+      colorscheme base16-${theme}
+    '';
+
     keymaps = [
       {
         mode = "n";
@@ -37,6 +90,16 @@ in {
       number = true;         # Show line numbers
       relativenumber = true; # Show relative line numbers
       shiftwidth = 2;        # Tab width should be 2
+      softtabstop = 2;
+      smartindent = true;
+      wrap = false;
+      swapfile = false;
+      backup = false;
+      hlsearch = false;
+      incsearch = true;
+      termguicolors = true;
+      scrolloff = 8;
+      updatetime = 50;
     };
 
   };