diff --git a/.luarc.json b/.luarc.json
index e1b9d70..b4057c8 100644
--- a/.luarc.json
+++ b/.luarc.json
@@ -1,4 +1,7 @@
 {
-    "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
-    "Lua.workspace.checkThirdParty": false
-}
\ No newline at end of file
+  "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
+  "workspace.library": [
+    "${3rd}/luv/library",
+    "${3rd}/luassert/library"
+  ]
+}
diff --git a/lua/smoothcursor/callbacks/buffer.lua b/lua/smoothcursor/callbacks/buffer.lua
index b21634e..3ae0aa0 100644
--- a/lua/smoothcursor/callbacks/buffer.lua
+++ b/lua/smoothcursor/callbacks/buffer.lua
@@ -1,28 +1,31 @@
 local sc_debug = require('smoothcursor.debug')
 
+-- #require('smoothcursor.callbacks.buffer').buffer
+
 local function create_buffer()
   return {
     buffer = {},
-    length = 1,
-    bufnr = 1, -- cache bufnr
+    length = 0,
+    bufnr = 0, -- cache bufnr
+    indexes = {},
 
     push_front = function(self, data)
-      table.insert(self, 1, data)
-      table.remove(self, self.length + 1)
+      table.insert(self.indexes, 1, data)
+      table.remove(self.indexes, #self.indexes)
     end,
 
     resize_buffer = function(self, size)
-      local diff = size - self.length
+      local diff = size - #self.indexes
       if diff < 0 then
         for _ = 1, -diff, 1 do
-          table.remove(self, self.length + 1)
+          table.remove(self.indexes, #self.indexes)
         end
       else
         for _ = 1, diff, 1 do
-          table.insert(self, 1, 0)
+          table.insert(self.indexes, 1, 0)
         end
       end
-      self.length = size
+      self.length = #self.indexes
     end,
 
     switch_buf = function(self)
@@ -31,15 +34,15 @@ local function create_buffer()
     end,
 
     all = function(self, value)
-      for i = 1, self.length, 1 do
-        self[i] = value
+      for i = 1, #self.indexes, 1 do
+        self.indexes[i] = value
       end
     end,
 
     is_stay_still = function(self)
-      local first_val = self[1]
-      for i = 2, self.length do
-        if first_val ~= self[i] then
+      local first_val = self.indexes[1]
+      for i = 2, #self.indexes do
+        if first_val ~= self.indexes[i] then
           return false
         end
       end
@@ -51,12 +54,19 @@ end
 local function buffer_metatable()
   return {
     __index = function(t, k)
+      if t.indexes[k] ~= nil then
+        return t.indexes[k]
+      end
       if t.buffer[t.bufnr] == nil then
         t.buffer[t.bufnr] = {}
       end
       return t.buffer[t.bufnr][k]
     end,
     __newindex = function(t, k, v)
+      if t.indexes[k] ~= nil then
+        t.indexes[k] = v
+        return
+      end
       if t.buffer[t.bufnr] == nil then
         t.buffer[t.bufnr] = {}
       end
diff --git a/lua/smoothcursor/callbacks/init.lua b/lua/smoothcursor/callbacks/init.lua
index adb89d0..4fd5a00 100644
--- a/lua/smoothcursor/callbacks/init.lua
+++ b/lua/smoothcursor/callbacks/init.lua
@@ -13,19 +13,21 @@ local function init()
   end
 end
 
----@param value integer | nil
+---@param value? integer
 local function buffer_set_all(value)
   if value == nil then
     value = vim.fn.getcurpos(vim.fn.win_getid())[2]
   end
   buffer['prev'] = value
   buffer:all(value)
+
+  -- Debug
   debug_callback(buffer, { 'Buffer Reset' }, function()
     sc_debug.reset_counter = sc_debug.reset_counter + 1
   end)
 end
 
---- @param with_timer_stop? boolean
+---@param with_timer_stop? boolean
 local function unplace_signs(with_timer_stop)
   if with_timer_stop == true then
     sc_timer:abort()
@@ -36,7 +38,7 @@ end
 
 -- place 'name' sign to the 'position'
 ---@param position number
----@param name string
+---@param name? string
 local function place_sign(position, name)
   position = math.floor(position + 0.5)
   if position < buffer['w0'] or position > buffer['w$'] then
diff --git a/lua/smoothcursor/callbacks/timer.lua b/lua/smoothcursor/callbacks/timer.lua
index 894e9ba..f2f0f6c 100644
--- a/lua/smoothcursor/callbacks/timer.lua
+++ b/lua/smoothcursor/callbacks/timer.lua
@@ -13,7 +13,7 @@ function ScTimer:post(func)
   if self.is_running then
     return
   end
-  vim.loop.timer_start(self.timer, 0, config.config.intervals, vim.schedule_wrap(func))
+  vim.uv.timer_start(self.timer, 0, config.config.intervals, vim.schedule_wrap(func))
   self.is_running = true
 end
 
diff --git a/plugin/smoothcursor.lua b/plugin/smoothcursor.lua
index 748713b..835aba1 100644
--- a/plugin/smoothcursor.lua
+++ b/plugin/smoothcursor.lua
@@ -35,3 +35,5 @@ vim.api.nvim_create_user_command('SmoothCursorStatus', function()
 end, {})
 
 vim.api.nvim_create_user_command('SmoothCursorDeleteSigns', utils.smoothcursor_delete_signs, {})
+
+vim.api.nvim_create_user_command('SmoothCursorDebug', require('smoothcursor.debug').debug, {})