diff --git a/.config/nvim/init.lua b/.config/nvim/init.lua
--- a/.config/nvim/init.lua
+++ b/.config/nvim/init.lua
@@ -2,3 +2,22 @@ require("config.options")
 require("lazy-bootstrap")
 require("config.maps")
 require("config.lsp")
+
+local g = vim.g
+
+-- >> Builtin
+g.netrw_altfile = 1
+g.netrw_use_errorwindow = 0
+
+-- >> Undotree
+g.undotree_SplitWidth = 45
+g.undotree_SetFocusWhenToggle = 1
+g.undotree_ShortIndicators = 1
+g.undotree_DiffCommand = "diff -dp -U 1"
+
+-- >> Tagbar
+g.tagbar_autoclose = 1
+g.tagbar_autofocus = 1
+g.tagbar_compact = 1
+g.tagbar_width = 30
+