diff --git a/nvim/init.lua b/nvim/init.lua
index 01c6df3..6f11d71 100644
--- a/nvim/init.lua
+++ b/nvim/init.lua
@@ -1,3 +1,7 @@
+-- disable netrw
+vim.g.loaded_netrw = 1
+vim.g.loaded_netrwPlugin = 1
+
 -- install Lazy
 local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
 if not vim.loop.fs_stat(lazypath) then
@@ -23,6 +27,9 @@ require("lazy").setup({
   "tanvirtin/monokai.nvim",
   { "nvim-telescope/telescope.nvim",
     dependencies = { 'nvim-lua/plenary.nvim' }
+  },
+  { "nvim-tree/nvim-tree.lua",
+    dependencies = { "nvim-tree/nvim-web-devicons" }
   }
 })
 
@@ -56,12 +63,24 @@ require("lualine").setup({
     lualine_y = { "progress" },
     lualine_z = { "location" },
   },
+  tabline = {
+    lualine_a = { "buffers" },
+  },
 })
 require("nvim-treesitter.configs").setup({
     build = ":TSUpdate",
     ensure_installed = { "bash", "python", "terraform", "vim", "yaml" },
     highlight = { enable = true },
 })
+require("nvim-tree").setup({
+  sort_by = "case_sensitive",
+  renderer = {
+    group_empty = true,
+  },
+  view = {
+    width = 80,
+  },
+})
 
 -- modify colorcheme
 vim.api.nvim_set_hl(0, "Normal", { bg = NONE })
@@ -94,20 +113,24 @@ vim.opt.tabstop = 2
 vim.opt.scrolloff = 5
 vim.opt.updatetime = 100
 vim.opt.shiftwidth = 2
-vim.opt.showtabline = 0
+vim.opt.showtabline = 2
 vim.opt.softtabstop = 2
 
 -- configure mappings
 vim.g.mapleader = " "
 vim.keymap.set("i", "<C-a>", "<esc>I", { silent = true })
 vim.keymap.set("i", "<C-e>", "<esc>A", { silent = true })
+vim.keymap.set("n", "<C-x>", ":bd<cr>", { silent = true })
 vim.keymap.set("n", "<esc><cr>", "<esc>:wq!<cr>", { silent = true })
 vim.keymap.set("n", "<leader>c", ':execute "set colorcolumn=" . (&colorcolumn == "" ? "80,120" : "")<cr>', { silent = true })
 vim.keymap.set("n", "<leader>ff", require("telescope.builtin").find_files, {})
 vim.keymap.set("n", "<leader>fg", require("telescope.builtin").live_grep, {})
 vim.keymap.set("n", "<leader>h", ":set hlsearch!<cr>", { silent = true })
+vim.keymap.set("n", "<leader>j", ":bprevious<cr>", { silent = true })
+vim.keymap.set("n", "<leader>k", ":bnext<cr>", { silent = true })
 vim.keymap.set("n", "<leader>n", ":set nonumber!<cr>:Gitsigns toggle_signs<cr>", { silent = true })
 vim.keymap.set("n", "<leader>s", ":set spell!<cr>", { silent = true })
+vim.keymap.set("n", "<leader>t", ":NvimTreeToggle<cr>", { silent = true })
 vim.keymap.set("n", "<tab>", "<C-w>w", { silent = true })
 
 -- autocmd