diff --git a/vim/vimrc b/vim/vimrc
index b708bf3..63a4176 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -36,6 +36,10 @@ Plug 'reedes/vim-pencil', Cond(!exists('g:vscode'))
 "" markdown
 Plug 'suan/vim-instant-markdown', Cond(!exists('g:vscode'))
 
+Plug 'dense-analysis/ale', Cond(!exists('g:vscode'))
+
+Plug 'neoclide/coc.nvim', Cond(!exists('g:vscode'), {'branch': 'release'})
+
 
 call plug#end()
 filetype plugin indent on
@@ -98,7 +102,7 @@ set nowritebackup
 " == swap ==
 set swapfile
 set updatecount=200
-set updatetime=10000
+set updatetime=300
 
 " == undo ==
 set undolevels=1000
@@ -144,6 +148,8 @@ set termguicolors
 " === keybinds ===
 set pastetoggle=<F11>
 
+set signcolumn=yes
+
 let maplocalleader = "ö"
 let mapleader = "\<Space>"
 " map <leader>w: w!<cr>
@@ -209,6 +215,10 @@ else
     syntax enable
     silent! colorscheme monokai
 
+    highlight Comment guifg=#64d86b
+    highlight SpecialComment guifg=#64d86b
+    highlight Todo guibg=#a9ebad
+
     let g:lightline = {
       \ 'colorscheme': 'wombat',
       \ 'active': {
@@ -250,6 +260,8 @@ else
     " == limelight ==
     let g:limelight_default_coefficient = 0.5
 
+    let g:ale_linters = {'rust': ['rust-analyzer']}
+
     " === functions ===
     function! DeleteTrailingWS()
         exe "normal mz"
@@ -269,6 +281,40 @@ else
 
     let g:rustfmt_autosave = 1
 
+    inoremap <silent><expr> <TAB>
+                \ coc#pum#visible() ? coc#pum#next(1) :
+                \ CheckBackspace() ? "\<Tab>" :
+                \ coc#refresh()
+    inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
+
+    " Make <CR> to accept selected completion item or notify coc.nvim to format
+    " <C-g>u breaks current undo, please make your own choice.
+    inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
+                \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
+
+    function! CheckBackspace() abort
+        let col = col('.') - 1
+        return !col || getline('.')[col - 1]  =~# '\s'
+    endfunction
+
+    " Use <c-space> to trigger completion.
+    if has('nvim')
+        inoremap <silent><expr> <c-space> coc#refresh()
+    else
+        inoremap <silent><expr> <c-@> coc#refresh()
+    endif
+
+    if has('nvim')
+        inoremap <silent><expr> <c-space> coc#refresh()
+    else
+        inoremap <silent><expr> <c-@> coc#refresh()
+    endif
+
     " https://stackoverflow.com/a/8585343
     map <leader>q :bp<bar>sp<bar>bn<bar>bd<CR>
+
+    nmap <silent> gd <Plug>(coc-definition)
+    nmap <silent> gy <Plug>(coc-type-definition)
+    nmap <silent> gi <Plug>(coc-implementation)
+    nmap <silent> gr <Plug>(coc-references)
 endif