diff --git a/vimrc b/vimrc
index 3449871..0ed8dd2 100644
--- a/vimrc
+++ b/vimrc
@@ -38,7 +38,7 @@ Plug 'rhysd/conflict-marker.vim'
 Plug 'airblade/vim-gitgutter'
 
 Plug 'inside/vim-search-pulse'
-Plug 'rking/ag.vim'
+Plug 'mileszs/ack.vim'
 
 Plug 'BufOnly.vim'
 
@@ -48,8 +48,7 @@ Plug 'chriskempson/base16-vim'
 
 Plug 'pangloss/vim-javascript', { 'for': 'javascript' }
 Plug 'marijnh/tern_for_vim', { 'do': 'npm install', 'for': 'javascript' }
-Plug 'mtscout6/syntastic-local-eslint.vim', { 'for': 'javascript' }
-Plug 'mxw/vim-jsx', { 'for': 'javascript.jsx' }
+Plug 'mxw/vim-jsx', { 'for': 'javascript' }
 
 Plug 'suan/vim-instant-markdown', { 'for': 'markdown' }
 Plug 'xuhdev/vim-latex-live-preview', { 'for': 'tex' }
@@ -171,6 +170,9 @@ nnoremap <leader><space> :noh<cr>
 nnoremap j gj
 nnoremap k gk
 
+"" open last buffer
+nnoremap <BS> <C-^>
+
 " Easier split navigation
 
 " Use ctrl-[hjkl] to select the active split!
@@ -235,6 +237,11 @@ vnoremap <silent> <Leader>0 :!node<cr>
 nnoremap + <c-a>
 nnoremap - <c-x>
 
+" debugging, use leader-DD to start, do a slow action, then leader-DQ to
+" finish. Your output will be in profile.log
+nnoremap <silent> <leader>DD :exe ":profile start profile.log"<cr>:exe ":profile func *"<cr>:exe ":profile file *"<cr>
+nnoremap <silent> <leader>DQ :exe ":profile pause"<cr>:noautocmd qall!<cr>
+
 "" abbreviations
 cnoreabbrev W! w!
 cnoreabbrev Q! q!
@@ -263,14 +270,41 @@ set undoreload=10000
 " Plugin Configuration
 "
 
-"" syntastic
-let g:syntastic_javascript_checkers = ['eslint']
+"" ACK
+if executable('ag')
+    let g:ackprg = 'ag --vimgrep'
+endif
 
+"" syntastic
 let g:syntastic_always_populate_loc_list = 1
 let g:syntastic_auto_loc_list = 0
 let g:syntastic_check_on_open = 1
 let g:syntastic_check_on_wq = 0
 
+" local linter support
+
+let g:syntastic_javascript_checkers = []
+
+function CheckJavaScriptLinter(filepath, linter)
+	if exists('b:syntastic_checkers')
+		return
+	endif
+	if filereadable(a:filepath)
+		let b:syntastic_checkers = [a:linter]
+		let {'b:syntastic_' . a:linter . '_exec'} = a:filepath
+	endif
+endfunction
+
+function SetupJavaScriptLinter()
+	let l:current_folder = expand('%:p:h')
+	let l:bin_folder = fnamemodify(syntastic#util#findFileInParent('package.json', l:current_folder), ':h')
+	let l:bin_folder = l:bin_folder . '/node_modules/.bin/'
+	call CheckJavaScriptLinter(l:bin_folder . 'standard', 'standard')
+	call CheckJavaScriptLinter(l:bin_folder . 'eslint', 'eslint')
+endfunction
+
+autocmd FileType javascript call SetupJavaScriptLinter()
+
 "" lightline
 if filereadable(expand("~/.vim/lightline.vim"))
     source ~/.vim/lightline.vim
@@ -312,7 +346,7 @@ let g:tex_flavor = "latex"
 let g:livepreview_previewer = 'zathura'
 
 " JSX
-" let g:jsx_ext_required = 0 " Allow JSX in normal JS files
+let g:jsx_ext_required = 0 " Allow JSX in normal JS files
 
 "
 " Autocmd Rules