[fix] nvim: I broke it again ma

Major refactoring in order to fix it T-T

nvim/standalone.nix

@@ -0,0 +1,92 @@
+{pkgs, ...}: {
+  imports = [./options.nix ./plugins.nix ./mappings.nix ./augroups.nix];
+
+  config = {
+    package = pkgs.unstable.neovim-unwrapped;
+    globals.mapleader = " ";
+    # Appearance
+    colorschemes.gruvbox = {
+      enable = true;
+      settings = {
+        bold = true;
+        transparent_mode = true;
+        terminal_colors = true;
+      };
+    };
+    clipboard.providers.wl-copy.enable = true;
+    opts = {
+      number = true;
+      relativenumber = true;
+      colorcolumn = "+1";
+      cursorline = true;
+      wrap = false;
+      splitright = true;
+      # Tabs & indentation
+      smarttab = true;
+      autoindent = true;
+      smartindent = true;
+      # Search path
+      path = ".,/usr/include,**";
+      wildmenu = true;
+      hlsearch = true;
+      incsearch = true;
+      ignorecase = true; # Search ignores cases
+      smartcase = true; # Unless it has a capital letter
+      # Enable local configuration :h 'exrc'
+      exrc = true; # safe since nvim 0.9
+    };
+    extraPlugins = let
+      plugins = pkgs.unstable.vimPlugins;
+      extraPlugins = import ./extraPlugins {pkgs = pkgs.unstable;};
+    in [
+      plugins.nui-nvim
+      plugins.nvim-web-devicons
+      extraPlugins.vim-jjdescription
+      extraPlugins.nvim-silicon
+    ];
+    # Formatting & linters
+    extraPackages = [
+      pkgs.unstable.silicon
+      pkgs.unstable.alejandra
+      pkgs.unstable.luajitPackages.jsregexp
+      pkgs.unstable.statix
+      pkgs.unstable.stylua
+      pkgs.unstable.shfmt
+      pkgs.unstable.taplo
+      pkgs.unstable.typos
+      pkgs.unstable.yamlfmt
+    ];
+    extraConfigLuaPre = ''
+      -- Lua Pre Config
+      if vim.fn.has 'termguicolors' then
+        -- Enable RGB colors
+        vim.g.termguicolors = true
+      end
+
+      -- Useful function
+      local has_words_before = function()
+        -- unpack = unpack or table.unpack
+        local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+        return col ~= 0
+          and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match '%s' == nil
+      end
+      -- END: Lua Pre Config
+    '';
+    extraConfigLua = ''
+      -- Lua Config
+      require("nvim-silicon").setup {
+        theme = "gruvbox-dark",
+        pad_horiz = 16,
+       pad_vert = 16,
+        -- Current buffer name
+        window_title = function()
+            return vim.fn.fnamemodify(
+                vim.api.nvim_buf_get_name(vim.api.nvim_get_current_buf()),
+                ":t"
+            )
+        end,
+      }
+      -- END: Lua Config
+    '';
+  };
+}