diff --git a/dotfiles/neovim/init.lua b/dotfiles/neovim/init.lua
index 6ed68de..5d8e17a 100644
--- a/dotfiles/neovim/init.lua
+++ b/dotfiles/neovim/init.lua
@@ -46,100 +46,6 @@ end
 require 'plugins'
 vim.cmd [[autocmd BufWritePost plugins.lua PackerCompile]]
 
-
--- LSP
--- https://zenn.dev/botamotch/articles/21073d78bc68bf
--- 1. LSP Sever management
---require('mason').setup()
---require('mason-lspconfig').setup_handlers({ function(server)
---    local opt = {
---        -- -- Function executed when the LSP server startup
---        -- on_attach = function(client, bufnr)
---        --   local opts = { noremap=true, silent=true }
---        --   vim.api.nvim_buf_set_keymap(bufnr, 'n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>', opts)
---        --   vim.cmd 'autocmd BufWritePre * lua vim.lsp.buf.formatting_sync(nil, 1000)'
---        -- end,
---        capabilities = require('cmp_nvim_lsp').update_capabilities(
---            vim.lsp.protocol.make_client_capabilities()
---        )
---    }
---    require('lspconfig')[server].setup(opt)
---end })
---
----- 2. build-in LSP function
----- keyboard shortcut
---vim.keymap.set('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>')
---vim.keymap.set('n', 'gf', '<cmd>lua vim.lsp.buf.formatting()<CR>')
---vim.keymap.set('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>')
---vim.keymap.set('n', 'gd', '<cmd>lua vim.lsp.buf.definition()<CR>')
---vim.keymap.set('n', 'gD', '<cmd>lua vim.lsp.buf.declaration()<CR>')
---vim.keymap.set('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>')
---vim.keymap.set('n', 'gt', '<cmd>lua vim.lsp.buf.type_definition()<CR>')
---vim.keymap.set('n', 'gn', '<cmd>lua vim.lsp.buf.rename()<CR>')
---vim.keymap.set('n', 'ga', '<cmd>lua vim.lsp.buf.code_action()<CR>')
---vim.keymap.set('n', 'ge', '<cmd>lua vim.diagnostic.open_float()<CR>')
---vim.keymap.set('n', 'g]', '<cmd>lua vim.diagnostic.goto_next()<CR>')
---vim.keymap.set('n', 'g[', '<cmd>lua vim.diagnostic.goto_prev()<CR>')
----- LSP handlers
---vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
---    vim.lsp.diagnostic.on_publish_diagnostics, { virtual_text = false }
---)
----- Reference highlight
---vim.cmd [[
---set updatetime=500
---highlight LspReferenceText  cterm=underline ctermfg=1 ctermbg=8 gui=underline guifg=#A00000 guibg=#104040
---highlight LspReferenceRead  cterm=underline ctermfg=1 ctermbg=8 gui=underline guifg=#A00000 guibg=#104040
---highlight LspReferenceWrite cterm=underline ctermfg=1 ctermbg=8 gui=underline guifg=#A00000 guibg=#104040
---augroup lsp_document_highlight
---  autocmd!
---  autocmd CursorHold,CursorHoldI * lua vim.lsp.buf.document_highlight()
---  autocmd CursorMoved,CursorMovedI * lua vim.lsp.buf.clear_references()
---augroup END
---]]
---
----- 3. completion (hrsh7th/nvim-cmp)
---local cmp = require("cmp")
---cmp.setup({
---    snippet = {
---        expand = function(args)
---            vim.fn["vsnip#anonymous"](args.body)
---        end,
---    },
---    sources = {
---        { name = "nvim_lsp" },
---        -- { name = "buffer" },
---        -- { name = "path" },
---    },
---    mapping = cmp.mapping.preset.insert({
---        ["<C-p>"] = cmp.mapping.select_prev_item(),
---        ["<C-n>"] = cmp.mapping.select_next_item(),
---        ['<C-l>'] = cmp.mapping.complete(),
---        ['<C-e>'] = cmp.mapping.abort(),
---        ["<CR>"] = cmp.mapping.confirm { select = true },
---    }),
---    experimental = {
---        ghost_text = true,
---    },
---})
----- cmp.setup.cmdline('/', {
-----   mapping = cmp.mapping.preset.cmdline(),
-----   sources = {
-----     { name = 'buffer' }
-----   }
----- })
----- cmp.setup.cmdline(":", {
-----   mapping = cmp.mapping.preset.cmdline(),
-----   sources = {
-----     { name = "path" },
-----     { name = "cmdline" },
-----   },
----- })
-
--- satysfi language server
---require('lspconfig')['satysfi-ls'].setup{
---  autostart = true
---}
-
 -----------------------------------------------------------
 -- Ctrl + P to invoke fzf file search
 vim.api.nvim_set_keymap('n', '<c-P>',