diff --git a/dot_config/nvim/exact_lua/exact_plugins/exact_editor/fold.lua b/dot_config/nvim/exact_lua/exact_plugins/exact_editor/fold.lua
new file mode 100644
index 0000000..19a27ae
--- /dev/null
+++ b/dot_config/nvim/exact_lua/exact_plugins/exact_editor/fold.lua
@@ -0,0 +1,60 @@
+return {
+  {
+    'kevinhwang91/nvim-ufo',
+    dependencies = {
+      'kevinhwang91/promise-async'
+    },
+    config = function()
+      vim.o.foldcolumn = '1' -- '0' is not bad
+      vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
+      vim.o.foldlevelstart = 99
+      vim.o.foldenable = true
+
+      -- Using ufo provider need remap `zR` and `zM`. If Neovim is 0.6.1, remap yourself
+      vim.keymap.set('n', 'zR', require('ufo').openAllFolds)
+      vim.keymap.set('n', 'zM', require('ufo').closeAllFolds)
+
+      -- Option 1: coc.nvim as LSP client
+      -- use {'neoclide/coc.nvim', branch = 'master', run = 'yarn install --frozen-lockfile'}
+      -- require('ufo').setup()
+      --
+
+      -- Option 2: nvim lsp as LSP client
+      -- Tell the server the capability of foldingRange,
+      -- Neovim hasn't added foldingRange to default capabilities, users must add it manually
+      local capabilities = vim.lsp.protocol.make_client_capabilities()
+      capabilities.textDocument.foldingRange = {
+          dynamicRegistration = false,
+          lineFoldingOnly = true
+      }
+      local language_servers = vim.lsp.get_clients() -- or list servers manually like {'gopls', 'clangd'}
+      for _, ls in ipairs(language_servers) do
+          require('lspconfig')[ls].setup({
+              capabilities = capabilities
+              -- you can add other fields for setting up lsp server in this table
+          })
+      end
+      require('ufo').setup()
+      --
+
+      -- Option 3: treesitter as a main provider instead
+      -- (Note: the `nvim-treesitter` plugin is *not* needed.)
+      -- ufo uses the same query files for folding (queries/<lang>/folds.scm)
+      -- performance and stability are better than `foldmethod=nvim_treesitter#foldexpr()`
+      -- require('ufo').setup({
+      --     provider_selector = function(bufnr, filetype, buftype)
+      --         return {'treesitter', 'indent'}
+      --     end
+      -- })
+      --
+
+      -- Option 4: disable all providers for all buffers
+      -- Not recommend, AFAIK, the ufo's providers are the best performance in Neovim
+      -- require('ufo').setup({
+      --     provider_selector = function(bufnr, filetype, buftype)
+      --         return ''
+      --     end
+      -- })
+    end,
+  }
+}
diff --git a/dot_config/nvim/exact_lua/exact_plugins/exact_editor/gitsigns.lua b/dot_config/nvim/exact_lua/exact_plugins/exact_editor/gitsigns.lua
index b8d66c7..6f53a80 100644
--- a/dot_config/nvim/exact_lua/exact_plugins/exact_editor/gitsigns.lua
+++ b/dot_config/nvim/exact_lua/exact_plugins/exact_editor/gitsigns.lua
@@ -1,3 +1,4 @@
+-- if true then return {} end -- 暫時停用（不會用🫠）
 return {
   "lewis6991/gitsigns.nvim",
   opts = {