diff --git a/coc-settings.json b/coc-settings.json
new file mode 100644
index 0000000..c1b655e
--- /dev/null
+++ b/coc-settings.json
@@ -0,0 +1,3 @@
+{
+    "explorer.icon.enableNerdfont": true
+}
diff --git a/layers/plug/coc.vim b/layers/plug/coc.vim
new file mode 100644
index 0000000..9e1fe42
--- /dev/null
+++ b/layers/plug/coc.vim
@@ -0,0 +1,35 @@
+vim9script
+
+def CheckBackspace(): bool
+    let col = col('.') - 1
+    return !col || getline('.')[col - 1]  =~# '\s'
+enddef
+
+def ShowDocumentation()
+    if CocAction('hasProvider', 'hover')
+        call CocActionAsync('doHover')
+    else
+        call feedkeys('K', 'in')
+    endif
+enddef
+
+final g:coc_global_extensions = ['coc-marketplace', 'coc-json', 'coc-vimlsp', 'coc-explorer', 'coc-git']
+
+tui#core#plug#Regist('neoclide/coc.nvim', {
+    branch: 'release',
+    config: () => {
+        set updatetime=300
+        set signcolumn=yes
+
+        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>"
+        inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm() : "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
+        # Use <c-space> to trigger completion
+        inoremap <silent><expr> <c-@> coc#refresh()
+        # Use K to show documentation in preview window
+        nnoremap <silent> K :call ShowDocumentation()<CR>
+        # Highlight the symbol and its references when holding the cursor
+        autocmd CursorHold * silent call CocActionAsync('highlight')
+    }
+})
+
diff --git a/layers/plug/init.vim b/layers/plug/init.vim
index 6bef8d0..cc37fea 100644
--- a/layers/plug/init.vim
+++ b/layers/plug/init.vim
@@ -7,3 +7,5 @@ TuiLayer plug.nerdtree
 TuiLayer plug.poplar
 
 TuiLayer plug.whichkey
+
+TuiLayer plug.coc
diff --git a/layers/plug/whichkey.vim b/layers/plug/whichkey.vim
index e4c1cbd..ef4100d 100644
--- a/layers/plug/whichkey.vim
+++ b/layers/plug/whichkey.vim
@@ -3,11 +3,12 @@ vim9script
 const g:which_key_map = {
     f: {
         name: 'File',
-        o: ['Poplar', 'open']
+        o: ['Poplar', 'open'],
+        x: ['q', 'quit']
     },
     v: {
         name: 'View',
-        f: [":NERDTreeToggle", "nerdtree"]
+        f: ["NERDTreeToggle", "nerdtree"]
     }
 }