diff --git a/.gitmodules b/.gitmodules
index b83d110..6aec3e3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,12 @@
-[submodule "pack/vendor/opt/nerdtree"]
+[submodule "pack/plugin/opt/nerdtree"]
 	path = pack/vendor/opt/nerdtree
 	url = https://github.com/preservim/nerdtree.git
 [submodule "pack/plugin/opt/vim-easymotion"]
 	path = pack/plugin/opt/vim-easymotion
 	url = https://github.com/easymotion/vim-easymotion.git
+[submodule "pack/plugin/start/vim-fugitive"]
+	path = pack/plugin/opt/vim-fugitive
+	url = https://github.com/tpope/vim-fugitive.git
+[submodule "pack/plugin/opt/ale"]
+	path = pack/plugin/opt/ale
+	url = https://github.com/dense-analysis/ale.git
diff --git a/pack/plugin/opt/ale b/pack/plugin/opt/ale
new file mode 160000
index 0000000..70eeae5
--- /dev/null
+++ b/pack/plugin/opt/ale
@@ -0,0 +1 @@
+Subproject commit 70eeae54fbd5c2e254604d543674f02d42c0ccdd
diff --git a/pack/vendor/opt/nerdtree b/pack/vendor/opt/nerdtree
deleted file mode 160000
index f3a4d8e..0000000
--- a/pack/vendor/opt/nerdtree
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f3a4d8eaa8ac10305e3d53851c976756ea9dc8e8
diff --git a/vimrc b/vimrc
index ec3735e..308aa48 100644
--- a/vimrc
+++ b/vimrc
@@ -61,9 +61,13 @@ let g:EasyMotion_startofline = 0 " keep cursor column when JK motion
 let g:Easymotion_smartcase = 1
 " Easymotion }}}
 
+" ale
+" packadd! ale
+" ale
+
 " NerdTree {{{
 packadd! nerdtree
-nnoremap <leader>n :NERDTreeToggle<CR>
+nnoremap <leader>n :NERDTreeFocus<CR>
 " }}}
 
 filetype plugin indent on  " Load plugins according to detected filetype.
@@ -134,4 +138,4 @@ endif
 set updatetime  =300
 set signcolumn  =yes
 
-set foldmethod  =marker
+set foldmethod  =manual