diff --git a/bin/install.sh b/bin/install.sh
index 66a58fb..94bd07a 100755
--- a/bin/install.sh
+++ b/bin/install.sh
@@ -27,6 +27,7 @@ mkdir -p ~/.config/nvim/lua/lspconfig/server_configurations
 ln -sf $(pwd)/dotfiles/neovim/lua/lspconfig/server_configurations/satysfi_ls.lua ~/.config/nvim/lua/lspconfig/server_configurations/satysfi_ls.lua
 mkdir -p ~/.config/nvim/after/ftplugin
 ln -sf $(pwd)/dotfiles/neovim/after/ftplugin/satysfi.lua ~/.config/nvim/after/ftplugin/satysfi.lua
+ln -sf $(pwd)/dotfiles/neovim/after/ftplugin/tex.lua ~/.config/nvim/after/ftplugin/tex.lua
 mkdir -p ~/.config/nvim/after/queries/satysfi
 curl -o ~/.config/nvim/after/queries/satysfi/highlights.scm https://raw.githubusercontent.com/monaqa/tree-sitter-satysfi/master/queries/highlights.scm
 curl -o ~/.config/nvim/after/queries/satysfi/indents.scm https://raw.githubusercontent.com/monaqa/tree-sitter-satysfi/master/queries/indents.scm
diff --git a/dotfiles/neovim/after/ftplugin/tex.lua b/dotfiles/neovim/after/ftplugin/tex.lua
new file mode 100644
index 0000000..5f56977
--- /dev/null
+++ b/dotfiles/neovim/after/ftplugin/tex.lua
@@ -0,0 +1,23 @@
+-- restore completion order of nvim-cmp
+-- source from `:help vimtex-complete-nvim-cmp`
+local cmp = require'cmp'
+cmp.setup.buffer {
+    formatting = {
+        format = function(entry, vim_item)
+            vim_item.menu = ({
+                    omni = (vim.inspect(vim_item.menu):gsub('%"', "")),
+                    buffer = "[Buffer]",
+                    -- formatting for other sources
+                })[entry.source.name]
+            return vim_item
+        end,
+    },
+    sources = cmp.config.sources{
+        { name = 'omni' },
+        { name = 'buffer' },
+        -- { name = 'nvim_lsp' },
+        { name = 'luasnip' },
+        { name = 'buffer' },
+        { name = 'path' },
+    },
+}
diff --git a/dotfiles/neovim/init.lua b/dotfiles/neovim/init.lua
index fcf48c1..e3bc895 100644
--- a/dotfiles/neovim/init.lua
+++ b/dotfiles/neovim/init.lua
@@ -35,6 +35,10 @@ require('lazy').setup({
         'nvim-lualine/lualine.nvim',
         dependencies = { 'kyazdani42/nvim-web-devicons', lazy = true }
     },
+    {
+        'lervag/vimtex',
+        ft = { 'tex', 'latex' },
+    },
     { 'lewis6991/gitsigns.nvim', },
     'neovim/nvim-lspconfig',
     {
@@ -45,9 +49,13 @@ require('lazy').setup({
             'L3MON4D3/LuaSnip', -- snippets
             'saadparwaiz1/cmp_luasnip', -- nvim-cmp source for LuaSnip
             'hrsh7th/cmp-buffer', -- nvim-cmp source for buffer words
-            'kdheepak/cmp-latex-symbols', -- latex math
+            {
+                'kdheepak/cmp-latex-symbols', -- latex math
+                ft = { 'julia', },
+            },
             'hrsh7th/cmp-path', -- nvim-cmp source for filesystem paths
             'hrsh7th/cmp-cmdline', -- command line
+            'hrsh7th/cmp-omni', -- source for omnifunc
             'hrsh7th/cmp-nvim-lua', -- nvim lua
         },
     },
@@ -134,6 +142,10 @@ end
 local ft = require('Comment.ft')
 ft.set('satysfi', '%%s')
 
+-----------------------------------------------------------
+-- vimtex
+vim.g.vimtex_view_method = 'general' -- which is installed on both win and linux
+
 -----------------------------------------------------------
 -- gitsigns
 require('gitsigns').setup {
@@ -392,7 +404,7 @@ cmp.setup {
 }
 -- cmdline completions
 -- `/` cmdline setup.
-cmp.setup.cmdline('/', {
+cmp.setup.cmdline({ '/', '?' }, {
   mapping = cmp.mapping.preset.cmdline(),
   sources = {
     { name = 'buffer' }