diff --git a/after_opt/lsp_conf.lua b/after_opt/lsp_conf.lua
index d80542f..7ba9a2f 100644
--- a/after_opt/lsp_conf.lua
+++ b/after_opt/lsp_conf.lua
@@ -2,7 +2,7 @@ local vim = vim
 local lspconfig = require("lspconfig")
 require("mason").setup()
 require("mason-lspconfig").setup({
-    ensure_installed = { "sumneko_lua" },
+    ensure_installed = { },
 })
 
 -- local default_on_attach = function(client)
@@ -42,8 +42,8 @@ local setup_handlers = {
     function(server_name)
         lspconfig[server_name].setup({})
     end,
-    ["sumneko_lua"] = function()
-        lspconfig.sumneko_lua.setup({
+    ["lua_ls"] = function()
+        lspconfig.lua_ls.setup({
             on_attach = default_on_attach,
             settings = {
                 Lua = {
@@ -54,6 +54,7 @@ local setup_handlers = {
                         globals = { "vim", "use", "require" },
                     },
                     workspace = {
+                        checkThirdParty = false, -- Stop ask to configure my work environment.
                         library = vim.api.nvim_get_runtime_file("", true),
                     },
                     telemetry = {
@@ -104,6 +105,47 @@ local setup_handlers = {
             },
         })
     end,
+    ["gopls"] = function()
+        lspconfig.gopls.setup({
+            on_attach = default_on_attach,
+            settings = {
+                gopls = {
+                    analyses = {
+                        unusedparams = true,
+                    },
+                    staticcheck = true,
+                    gofumpt = true,
+                },
+            },
+        })
+    end,
+    ["pylsp"] = function()
+        lspconfig.pylsp.setup({
+            on_attach = default_on_attach,
+            -- https://github.com/python-rope/rope/wiki/Rope-in-Vim-or-Neovim
+            cmd = { "pylsp" },
+            settings = {
+                pylsp = {
+                    configurationSources = { "flake8" },
+                    plugins = {
+                        -- https://github.com/python-lsp/python-lsp-server/blob/develop/CONFIGURATION.md
+                        jedi_symbols = {
+                            enabled = true,
+                            all_scopes = true,
+                            include_import_symbols = true,
+                        },
+                        -- jedi_definition.enabled = true,
+                        jedi_hover = {
+                            enabled = true,
+                        },
+                        rope_completion = {
+                            enabled = true,
+                        },
+                    }
+                }
+            }
+        })
+    end,
 }
 
 local ok, secret = pcall(require, "secret")
diff --git a/fnl/core/au/init.fnl b/fnl/core/au/init.fnl
index ce31421..40f5109 100644
--- a/fnl/core/au/init.fnl
+++ b/fnl/core/au/init.fnl
@@ -1,7 +1,7 @@
-(import-macros {: epi} :util.macros)
+(import-macros {: epi : when-let : def} :util.macros)
 (import-macros {: au! : la : plug : async-do!} :kaza.macros)
 (local {: concat-with} (require :util.list))
-(local {: hi-clear} (require :kaza.hi))
+(local {: hi-clear : get-hl} (require :kaza.hi))
 (local {: syntax} (require :kaza.cmd))
 (local vf vim.fn)
 (local va vim.api)
@@ -62,7 +62,7 @@
                           ; (link :Comment {:fg (blightness (get-hl :Comment :fg) 0.8)})
                           ]
                          [:CommentHead (link :Comment {:fg :#727ca7})]
-                         [:VertSplit (link :NonText {})]
+                         [:VertSplit (link :LineNr {})]
                          [:StatusLine (link :NonText {})]
                          ; [:StatusLine (link :NonText {:fg (get-hl :StatusLine :fg)})]
                          ; [:BufferLineFill (link :NonText {:fg (get-hl :BufferLineFill :fg)})]
@@ -117,7 +117,10 @@
                     (= vim.bo.filetype "lua")
                     (= vim.bo.filetype "rust")
                     (= vim.bo.filetype "tex")
-                    ))
+                    (= vim.bo.filetype "python")
+                    (= vim.bo.filetype "htmldjango")
+                    (= vim.bo.filetype "javascript")
+                    (= vim.bo.filetype "go")))
        (when res
          (tset vim.wo :winbar "%{%v:lua.require'lua.winbar'.exec()%}"))))
      {:pattern :*})
@@ -147,7 +150,7 @@
                                :/*
                                :<kDivide><kMultiply><space><space><kMultiply><kDivide><left><left><left>
                                {:noremap true}))
-   :pattern [:*.c :*.h :*.cpp :*.rs]
+   :pattern [:*.c :*.h :*.cpp :*.rs :*.go]
    :group pattern})
 (create_autocmd
   [:BufRead :BufNewFile]
@@ -181,12 +184,13 @@
 (vim.fn.setcellwidths
   [[0x9789 0x9789 2]
    [0x978B 0x978B 2]])
+
 (fn todo []
   ;; https://gist.github.com/huytd/668fc018b019fbc49fa1c09101363397
-  (vf.matchadd :Conceal "^\\s*- \\[\\s\\]" 1 -1 {:conceal :})
-  (vf.matchadd :Conceal "^\\s*- \\[x\\]" 1 -1 {:conceal :})
+  (vf.matchadd :Conceal "\\(^\\s*\\)\\@<=- \\[\\s\\]" 1 -1 {:conceal :})
+  (vf.matchadd :Conceal "\\(^\\s*\\)\\@<=- \\[x\\]" 1 -1 {:conceal :})
   ; (vf.matchadd :Comment "^---" 1 -1 {:conceal "• "})
-  (vf.matchadd :Conceal "^\\s*-\\(\\s\\)\\@=" 0 -1 {:conceal "• "})
+  (vf.matchadd :Conceal "\\(^\\s*\\)\\@<=-\\(\\s\\)\\@=" 0 -1 {:conceal "• "})
   (vf.matchadd :Conceal "^#\\(\\s\\)\\@=" 0 -1 {:conceal "◉"})
   (vf.matchadd :Conceal "^##\\(\\s\\)\\@=" 0 -1 {:conceal "○" })
   (vf.matchadd :Conceal "^###\\(\\s\\)\\@=" 0 -1 {:conceal "✹" })
@@ -194,7 +198,13 @@
   ; (syntax "syntax match todoCheckbox \'\\\[x\\\]\' conceal cchar=☒")
   (vim.cmd "hi def link todoCheckbox Todo")
   (vim.cmd "setlocal cole=1")
-  (buf_set_keymap 0 :n "<localleader>td" "a- [ ] <esc>" {:noremap true}))
+  (vim.cmd "setlocal comments=nb:>,b:-\\ [\\ ],b:-\\ [x],b:-")
+  (local indent 2)
+  (vim.cmd "setlocal formatoptions-=c formatoptions+=jro")
+  (vim.cmd (string.format "setlocal shiftwidth=%d" 2))
+  (vim.cmd (string.format "setlocal tabstop=%d" 2))
+  (vim.cmd (string.format "setlocal softtabstop=%d" 2))
+  (buf_set_keymap 0 :n "<localleader>td" "a- [ ] " {:noremap true :desc "markdown add checkbox"}))
 (create_autocmd
   [:BufRead :BufNewFile]
   {:callback (λ []
@@ -276,11 +286,11 @@
 ;              :syntax {:month "'^\\(\\d\\|\\d\\d\\)月'"}})
 
 ;; packer
-(create_autocmd
-  :BufWritePost
-  {:command :PackerCompile
-   :pattern :plugs.fnl
-   :group (create_augroup :packer-compile {:clear true})})
+; (create_autocmd
+;   :BufWritePost
+;   {:command :PackerCompile
+;    :pattern :plugs.fnl
+;    :group (create_augroup :packer-compile {:clear true})})
 
 ;; ref-view
 (au! :ref-view
@@ -296,3 +306,17 @@
 ; (au! :reload-copilot
 ;      :VimEnter
 ;      (vim.cmd "Copilot restart"))
+
+
+;; bufferline
+(au! :reload-devicon
+     ; [:BufWinEnter :BufWinLeave :BufReadPost]
+     ; [:BufWinEnter :TabEnter :WinEnter]
+     [:BufEnter :BufLeave :WinEnter :WinLeave :TabEnter :TabLeave :BufWinEnter :BufWinLeave :BufReadPost :BufReadPre]
+     (do
+       (when-let fg (get-hl :Comment :fg)
+                 (local cs (vim.api.nvim_get_hl 0 {}))
+                 (each [hi-name _ (pairs cs)]
+                   (when (not= (hi-name:match "^BufferLineDevIcon.*Inactive$") nil)
+                     (vim.cmd (.. "hi " hi-name " guifg=" fg))))))
+     {})
diff --git a/fnl/core/lsp.fnl b/fnl/core/lsp.fnl
index 2cf126a..8894743 100644
--- a/fnl/core/lsp.fnl
+++ b/fnl/core/lsp.fnl
@@ -11,7 +11,7 @@
 
 ;; aus(group, arguments that will be unpacked)
 (aus :lsp-diagnostic
-     [[:CursorHold (la (vim.diagnostic.setloclist {:open false})) {:pattern [:*.rs :*.ts :*.tex]}]
+     [[:CursorHold (la (vim.diagnostic.setloclist {:open false})) {:pattern [:*.rs :*.ts :*.tex :*.py :*.go]}]
       [:FileType (la (let [line_num (vim.fn.line :$)]
                        ; (tset _G.__kaza.v :diagnostic_master_buf (vim.api.nvim_get_current_buf))
                        (tset vim.wo :wrap true)