diff --git a/init.lua b/init.lua
index 90f0d972..baf48a54 100644
--- a/init.lua
+++ b/init.lua
@@ -621,7 +621,35 @@ require('mason-lspconfig').setup()
 --  define the property 'filetypes' to the map in question.
 local servers = {
   clangd = {},
-  gopls = {},
+  gopls = {
+    gofumpt = true,
+    usePlaceholders = true,
+    completeUnimported = true,
+    matcher = 'Fuzzy',
+    diagnosticsDelay = '200ms',
+    symbolMatcher = 'fuzzy',
+    buildFlags = { '-tags', 'integration' },
+    -- codelenses
+    codelenses = {
+      generate = true, -- show the `go generate` lens.
+      gc_details = true, -- Show a code lens toggling the display of gc's choices.
+      test = true,
+      tidy = true,
+      vendor = true,
+      regenerate_cgo = true,
+      upgrade_dependency = true,
+    },
+    -- hints
+    hints = {
+      assignVariableTypes = true,
+      compositeLiteralFields = true,
+      compositeLiteralTypes = true,
+      constantValues = true,
+      functionTypeParameters = true,
+      parameterNames = true,
+      rangeVariableTypes = true,
+    },
+  },
   pyright = {},
   rust_analyzer = {},
   -- tsserver = {},
diff --git a/lazy-lock.json b/lazy-lock.json
index 92b3208d..cbfc6ea0 100644
--- a/lazy-lock.json
+++ b/lazy-lock.json
@@ -12,9 +12,12 @@
   "fidget.nvim": { "branch": "main", "commit": "1d1042d418ee8cb70d68f1e38db639844331c093" },
   "friendly-snippets": { "branch": "main", "commit": "b8fae73a479ae0a1c54f5c98fa687ae8a0addc53" },
   "gitsigns.nvim": { "branch": "main", "commit": "2c2463dbd82eddd7dbab881c3a62cfbfbe3c67ae" },
+  "go.nvim": { "branch": "master", "commit": "24d2fa373d55d9900cd4b502a88214dc17e6fab6" },
+  "guihua.lua": { "branch": "master", "commit": "9fb6795474918b492d9ab01b1ebaf85e8bf6fe0b" },
   "harpoon": { "branch": "master", "commit": "ccae1b9bec717ae284906b0bf83d720e59d12b91" },
   "indent-blankline.nvim": { "branch": "master", "commit": "12e92044d313c54c438bd786d11684c88f6f78cd" },
   "lazy.nvim": { "branch": "main", "commit": "aedcd79811d491b60d0a6577a9c1701063c2a609" },
+  "lsp_signature.nvim": { "branch": "master", "commit": "fed2c8389c148ff1dfdcdca63c2b48d08a50dea0" },
   "lualine.nvim": { "branch": "master", "commit": "7d131a8d3ba5016229e8a1d08bf8782acea98852" },
   "mason-lspconfig.nvim": { "branch": "main", "commit": "b9084b1f42f790d6230dc66dbcb6bcc35b148552" },
   "mason-nvim-dap.nvim": { "branch": "main", "commit": "3614a39aae98ccd34124b072939d6283853b3dd2" },
diff --git a/lua/custom/options.lua b/lua/custom/options.lua
index 459d325d..024f2ab6 100644
--- a/lua/custom/options.lua
+++ b/lua/custom/options.lua
@@ -3,3 +3,6 @@
 --
 
 vim.o.cursorline = true
+vim.o.expandtab = true
+vim.o.shiftwidth = 2
+vim.o.tabstop = 2
diff --git a/lua/custom/plugins/go.lua b/lua/custom/plugins/go.lua
new file mode 100644
index 00000000..12baa28d
--- /dev/null
+++ b/lua/custom/plugins/go.lua
@@ -0,0 +1,17 @@
+local M = {
+  'ray-x/go.nvim',
+  dependencies = { -- optional packages
+    'ray-x/guihua.lua',
+    'neovim/nvim-lspconfig',
+    'nvim-treesitter/nvim-treesitter',
+  },
+  ft = { 'go', 'gomod' },
+  build = ':lua require("go.install").update_all_sync()', -- if you need to install/update all binaries
+}
+
+function M.config()
+  -- setup your go.nvim
+  require('go').setup({})
+end
+
+return M
diff --git a/lua/custom/plugins/lsp-signature.lua b/lua/custom/plugins/lsp-signature.lua
new file mode 100644
index 00000000..6e79018b
--- /dev/null
+++ b/lua/custom/plugins/lsp-signature.lua
@@ -0,0 +1,79 @@
+local M = {
+  'ray-x/lsp_signature.nvim',
+  event = 'InsertEnter',
+}
+
+function M.config()
+  local cfg = {
+    debug = false, -- set to true to enable debug logging
+    log_path = vim.fn.stdpath('cache') .. '/lsp_signature.log', -- log dir when debug is on
+    -- default is  ~/.cache/nvim/lsp_signature.log
+    verbose = false, -- show debug line number
+
+    bind = true, -- This is mandatory, otherwise border config won't get registered.
+    -- If you want to hook lspsaga or other signature handler, pls set to false
+    doc_lines = 10, -- will show two lines of comment/doc(if there are more than two lines in doc, will be truncated);
+    -- set to 0 if you DO NOT want any API comments be shown
+    -- This setting only take effect in insert mode, it does not affect signature help in normal
+    -- mode, 10 by default
+
+    max_height = 12, -- max height of signature floating_window
+    max_width = 80, -- max_width of signature floating_window, line will be wrapped if exceed max_width
+    -- the value need >= 40
+    wrap = true, -- allow doc/signature text wrap inside floating_window, useful if your lsp return doc/sig is too long
+    floating_window = true, -- show hint in a floating window, set to false for virtual text only mode
+
+    floating_window_above_cur_line = true, -- try to place the floating above the current line when possible Note:
+    -- will set to true when fully tested, set to false will use whichever side has more space
+    -- this setting will be helpful if you do not want the PUM and floating win overlap
+
+    floating_window_off_x = 1, -- adjust float windows x position.
+    -- can be either a number or function
+    floating_window_off_y = 0, -- adjust float windows y position. e.g -2 move window up 2 lines; 2 move down 2 lines
+    -- can be either number or function, see examples
+
+    close_timeout = 4000, -- close floating window after ms when laster parameter is entered
+    fix_pos = false, -- set to true, the floating window will not auto-close until finish all parameters
+    hint_enable = true, -- virtual hint enable
+    hint_prefix = '👉 ',
+    hint_scheme = 'String',
+    hint_inline = function()
+      return false
+    end, -- should the hint be inline(nvim 0.10 only)?  default false
+    -- return true | 'inline' to show hint inline, return 'eol' to show hint at end of line, return false to disable
+    -- return 'right_align' to display hint right aligned in the current line
+    hi_parameter = 'LspSignatureActiveParameter', -- how your parameter will be highlight
+    handler_opts = {
+      border = 'rounded', -- double, rounded, single, shadow, none, or a table of borders
+    },
+
+    always_trigger = false, -- sometime show signature on new line or in middle of parameter can be confusing, set it to false for #58
+
+    auto_close_after = nil, -- autoclose signature float win after x sec, disabled if nil.
+    extra_trigger_chars = {}, -- Array of extra characters that will trigger signature completion, e.g., {"(", ","}
+    zindex = 200, -- by default it will be on top of all floating windows, set to <= 50 send it to bottom
+
+    padding = '', -- character to pad on left and right of signature can be ' ', or '|'  etc
+
+    transparency = nil, -- disabled by default, allow floating win transparent value 1~100
+    shadow_blend = 36, -- if you using shadow as border use this set the opacity
+    shadow_guibg = 'Black', -- if you using shadow as border use this set the color e.g. 'Green' or '#121315'
+    timer_interval = 200, -- default timer check interval set to lower value if you want to reduce latency
+    toggle_key = nil, -- toggle signature on and off in insert mode,  e.g. toggle_key = '<M-x>'
+    toggle_key_flip_floatwin_setting = false, -- true: toggle floating_windows: true|false setting after toggle key pressed
+    -- false: floating_windows setup will not change, toggle_key will pop up signature helper, but signature
+    -- may not popup when typing depends on floating_window setting
+
+    select_signature_key = nil, -- cycle to next signature, e.g. '<M-n>' function overloading
+    move_cursor_key = nil, -- imap, use nvim_set_current_win to move cursor between current win and floating
+  }
+
+  -- recommended:
+  require('lsp_signature').setup(cfg) -- no need to specify bufnr if you don't use toggle_key
+
+  -- You can also do this inside lsp on_attach
+  -- note: on_attach deprecated
+  -- require'lsp_signature'.on_attach(cfg, bufnr) -- no need to specify bufnr if you don't use toggle_key, -- Panda for parameter, NOTE: for the terminal not support emoji, might crash
+end
+
+return M