diff --git a/init.lua b/init.lua
index fd4567d9..0eb8d2c4 100644
--- a/init.lua
+++ b/init.lua
@@ -682,3 +682,9 @@ cmp.setup {
 
 -- The line beneath this is called `modeline`. See `:help modeline`
 -- vim: ts=2 sts=2 sw=2 et
+--
+-- custom settings
+require("custom.configs.settings")
+
+-- custom mappings
+require("custom.configs.maps")
diff --git a/lua/custom/configs/maps.lua b/lua/custom/configs/maps.lua
new file mode 100644
index 00000000..4863c215
--- /dev/null
+++ b/lua/custom/configs/maps.lua
@@ -0,0 +1,51 @@
+local function map(mode, lhs, rhs)
+	vim.keymap.set(mode, lhs, rhs, { silent = true })
+end
+
+-- Save
+map("n", "<leader>w", "<CMD>update<CR>")
+
+-- Quit
+map("n", "<leader>q", "<CMD>q<CR>")
+
+-- Exit insert mode
+map("i", "jj", "<ESC>")
+
+-- Window split
+map("n", "<leader>sv", "<CMD>vsplit<CR>")
+map("n", "<leader>sh", "<CMD>split<CR>")
+
+-- Window resize
+map("n", "<c-Left>", "<c-w><")
+map("n", "<c-Right>", "<c-w>>")
+map("n", "<c-Up>", "<c-w>+")
+map("n", "<c-Down>", "<c-w>-")
+
+-- Move selected line / block of text in visual mode
+map("v", "J", ":m '>+1<CR>gv=gv")
+map("v", "K", ":m '<-2<CR>gv-gv")
+
+map("n", "J", "mzJ`z")
+map("n", "<C-d>", "<C-d>zz")
+map("n", "<C-u>", "<C-u>zz")
+map("n", "n", "nzzzv")
+map("n", "N", "Nzzzv")
+
+-- Buffer
+map("n", "<TAB>", "<CMD>bnext<CR>")
+map("n", "<s-TAB>", "<CMD>bprevious<CR>")
+
+map("n", "Q", "<Nop>")
+map("n", "<c-f>", "<CMD>silent !tmux new tmux-sessionizer<CR>")
+
+-- LSP format
+map("n", "<leader>f", function()
+	vim.lsp.buf.format()
+end)
+
+-- Search and replace
+map("n", "<leader>s", [[:%s/\<<C-r><C-w>\>/<C-r><C-w>/gI<Left><Left><Left>]])
+
+
+-- Reset highlight
+map("n", "<CR>", "<CMD>noh<CR><CR>")
diff --git a/lua/custom/configs/settings.lua b/lua/custom/configs/settings.lua
new file mode 100644
index 00000000..eebf351e
--- /dev/null
+++ b/lua/custom/configs/settings.lua
@@ -0,0 +1,40 @@
+local global = vim.g
+local o = vim.o
+
+-- Copilot
+global.copilot_assume_mapped = true
+
+-- Editor options
+o.relativenumber = true
+o.syntax = 'on'
+o.autoindent = true
+o.cursorline = true
+o.expandtab = true
+o.shiftwidth = 2
+o.tabstop = 2
+o.encoding = 'utf-8'
+o.ruler = true
+o.title = true
+o.hidden = true
+o.wildmenu = true
+o.showcmd = true
+o.showmatch = true
+o.inccommand = 'split'
+o.splitbelow = true				-- open new vertical split bottom
+o.splitright = true				-- open new horizontal split right
+o.smartindent = true
+o.wrap = false
+
+-- Highlight search
+o.hlsearch = true
+o.incsearch = true
+
+-- No vim backup files
+o.backup = false
+o.swapfile = false
+
+-- Scrolling settings
+o.scrolloff = 8
+o.colorcolumn = '80'
+
+
diff --git a/lua/custom/plugins/copilot.lua b/lua/custom/plugins/copilot.lua
new file mode 100644
index 00000000..0bc50063
--- /dev/null
+++ b/lua/custom/plugins/copilot.lua
@@ -0,0 +1,3 @@
+return {
+	"github/copilot.vim"
+}
diff --git a/lua/custom/plugins/harpoon.lua b/lua/custom/plugins/harpoon.lua
new file mode 100644
index 00000000..340ed713
--- /dev/null
+++ b/lua/custom/plugins/harpoon.lua
@@ -0,0 +1,15 @@
+return {
+	'thePrimeagen/harpoon',
+	dependencies = { 'nvim-lua/plenary.nvim' },
+	config = function ()
+		local mark = require('harpoon.mark')
+		vim.keymap.set("n", "<leader>ha", mark.add_file)
+
+		local ui = require('harpoon.ui')
+		vim.keymap.set("n", "<c-e>", ui.toggle_quick_menu)
+		vim.keymap.set("n", "<c-h>", function() ui.nav_file(1) end)
+		vim.keymap.set("n", "<c-t>", function() ui.nav_file(2) end)
+		vim.keymap.set("n", "<c-n>", function() ui.nav_file(3) end)
+		vim.keymap.set("n", "<c-s>", function() ui.nav_file(4) end)
+	end
+}
diff --git a/lua/custom/plugins/lualine.lua b/lua/custom/plugins/lualine.lua
new file mode 100644
index 00000000..6b89a746
--- /dev/null
+++ b/lua/custom/plugins/lualine.lua
@@ -0,0 +1,45 @@
+return {
+  {
+    'nvim-lualine/lualine.nvim',
+    opts = {
+      options = {
+        icons_enabled = true,
+        theme = 'onedark',
+        component_separators = { left = "", right = "" },
+        section_separators = { left = "", right = "" },
+        disabled_filetypes = {
+          statusline = {},
+          winbar = {},
+        },
+        ignore_focus = {},
+        always_divide_middle = true,
+        globalstatus = false,
+        refresh = {
+          statusline = 1000,
+          tabline = 1000,
+          winbar = 1000,
+        },
+      },
+      sections = {
+        lualine_a = { "mode" },
+        lualine_b = { "branch", "diff", "diagnostics" },
+        lualine_c = { "filename" },
+        lualine_x = { "encoding", "fileformat", "filetype" },
+        lualine_y = { "progress" },
+        lualine_z = { "location" },
+      },
+      inactive_sections = {
+        lualine_a = {},
+        lualine_b = {},
+        lualine_c = { "filename" },
+        lualine_x = { "location" },
+        lualine_y = {},
+        lualine_z = {},
+      },
+      tabline = {},
+      winbar = {},
+      inactive_winbar = {},
+      extensions = {},
+    },
+  },
+}
diff --git a/lua/custom/plugins/mardown_preview.lua b/lua/custom/plugins/mardown_preview.lua
new file mode 100644
index 00000000..447d2c2c
--- /dev/null
+++ b/lua/custom/plugins/mardown_preview.lua
@@ -0,0 +1,9 @@
+return {
+    "iamcco/markdown-preview.nvim",
+    config = function()
+      vim.fn["mkdp#util#install"]()
+
+			vim.keymap.set("n", "<leader>m", "<CMD>MarkdownPreview<CR>")
+			vim.keymap.set("n", "<leader>mn", "<CMD>MarkdownPreviewStop<CR>")
+    end,
+}
diff --git a/lua/custom/plugins/neo-tree.lua b/lua/custom/plugins/neo-tree.lua
index 4b2717e0..ae51dd89 100644
--- a/lua/custom/plugins/neo-tree.lua
+++ b/lua/custom/plugins/neo-tree.lua
@@ -13,5 +13,7 @@ return {
 	},
 	config = function ()
 		require('neo-tree').setup {}
+		vim.keymap.set("n", "<leader>nt", "<CMD>Neotree toggle<CR>")
+		vim.keymap.set("n", "<leader>o", "<CMD>Neotree focus<CR>")
 	end
 }
diff --git a/lua/custom/plugins/toggleterm.lua b/lua/custom/plugins/toggleterm.lua
new file mode 100644
index 00000000..9835a1f3
--- /dev/null
+++ b/lua/custom/plugins/toggleterm.lua
@@ -0,0 +1,24 @@
+return {
+	'akinsho/toggleterm.nvim',
+	version = "*",
+	config = function()
+		local term = require('toggleterm')
+
+		term.setup {
+			size = 20,
+			open_mapping = [[<leader>tf]],
+			shading_factor = 2,
+			direction = 'float',
+			float_opts = {
+				border = 'curved',
+				highlights = {
+					border = "Normal",
+					background = "Normal",
+				}
+			},
+		}
+
+		vim.keymap.set("n", "<leader>th", "<CMD>ToggleTerm size=10 direction=horizontal<CR>")
+		vim.keymap.set("n", "<leader>tv", "<CMD>ToggleTerm size=80 direction=vertical<CR>")
+	end
+}
diff --git a/lua/custom/plugins/undotree.lua b/lua/custom/plugins/undotree.lua
new file mode 100644
index 00000000..0f5f0893
--- /dev/null
+++ b/lua/custom/plugins/undotree.lua
@@ -0,0 +1,6 @@
+return {
+	'mbbill/undotree',
+	config =function ()
+		vim.keymap.set("n", "<leader>u", "<CMD>UndotreeToggle<CR>")
+	end
+}