diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53af00e2..b48a8335 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,14 +31,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `sidebars`-> `options.darken.sidebars.list`
 - `colors`-> `palettes` or `specs`
 - `overrides` -> `groups`
+- `dev` -> `vim.g.github_theme_debug`
 
 ### New Configuration
 
+- `options.compile_file_suffix` -> Option for setting compiled file suffix.
+- `options.compile_path` -> Option for setting compile files path.
+- `options.terminal_colors` -> Option for toggling builtin terminal highlights.
 - `options.module_default` -> Option for toggling plugins highlights
 - `options.modules` -> Option for individual plugins related configuration
 
 ### What's New?
 
+- Compiling colorscheme for blazingly fast load.
 - `lib.deprecation` - A Deprecation library to print Deprecation Messages.
 - `lib.log` - A logging library to print log Messages.
 - The `config.default` module has been changed to a variable and moved inside the `config` module.
@@ -47,8 +52,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - #160 closed due to inactivity.
 - #191 closed due to inactivity.
-- #201 fixed
 - #193 closed with conversation.
+- #201 fixed
+- #209 fixed
 - #213 fixed
 - #228 fixed
 - #231 fixed
diff --git a/colors/github_dark.vim b/colors/github_dark.vim
index bf072bdf..931c442c 100644
--- a/colors/github_dark.vim
+++ b/colors/github_dark.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require("github-theme.config").set_theme('github_dark')
 require("github-theme").load()
 
diff --git a/colors/github_dark_colorblind.vim b/colors/github_dark_colorblind.vim
index 915295b0..7b567bc8 100644
--- a/colors/github_dark_colorblind.vim
+++ b/colors/github_dark_colorblind.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require("github-theme.config").set_theme('github_dark_colorblind')
 require("github-theme").load()
 
diff --git a/colors/github_dark_dimmed.vim b/colors/github_dark_dimmed.vim
index b894125f..50b85250 100644
--- a/colors/github_dark_dimmed.vim
+++ b/colors/github_dark_dimmed.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require('github-theme.config').set_theme('github_dark_dimmed')
 require('github-theme').load()
 
diff --git a/colors/github_dark_high_contrast.vim b/colors/github_dark_high_contrast.vim
index 5feb781c..e970c42a 100644
--- a/colors/github_dark_high_contrast.vim
+++ b/colors/github_dark_high_contrast.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require('github-theme.config').set_theme('github_dark_high_contrast')
 require('github-theme').load()
 
diff --git a/colors/github_dark_tritanopia.vim b/colors/github_dark_tritanopia.vim
index 94697f32..b3787d6b 100644
--- a/colors/github_dark_tritanopia.vim
+++ b/colors/github_dark_tritanopia.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require('github-theme.config').set_theme('github_dark_tritanopia')
 require('github-theme').load()
 
diff --git a/colors/github_light.vim b/colors/github_light.vim
index 54359fa2..8ca9bf5a 100644
--- a/colors/github_light.vim
+++ b/colors/github_light.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require("github-theme.config").set_theme('github_light')
 require("github-theme").load()
 
diff --git a/colors/github_light_colorblind.vim b/colors/github_light_colorblind.vim
index f03c066e..7e0e3d5d 100644
--- a/colors/github_light_colorblind.vim
+++ b/colors/github_light_colorblind.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require("github-theme.config").set_theme('github_light_colorblind')
 require("github-theme").load()
 
diff --git a/colors/github_light_high_contrast.vim b/colors/github_light_high_contrast.vim
index 05fc2221..91b9fe19 100644
--- a/colors/github_light_high_contrast.vim
+++ b/colors/github_light_high_contrast.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require('github-theme.config').set_theme('github_light_high_contrast')
 require('github-theme').load()
 
diff --git a/colors/github_light_tritanopia.vim b/colors/github_light_tritanopia.vim
index a514d448..75c6dd0b 100644
--- a/colors/github_light_tritanopia.vim
+++ b/colors/github_light_tritanopia.vim
@@ -1,5 +1,8 @@
 lua << EOF
 
+if vim.g.github_theme_debug then
+  require("github-theme.util.reload")()
+end
 require('github-theme.config').set_theme('github_light_tritanopia')
 require('github-theme').load()
 
diff --git a/doc/gt_changelog.txt b/doc/gt_changelog.txt
index 1cb2f3d5..74690495 100644
--- a/doc/gt_changelog.txt
+++ b/doc/gt_changelog.txt
@@ -3,6 +3,22 @@
 
 # Changelog
 
+
+                                                        *github-theme.changelog-06052023*
+Date: May 06, 2023
+
+I(ful1e5) removed the `dev` configuration from `setup({...})` and added the
+`vim.g.github_theme_debug` Vim global option for theme debugging. This option
+creates a Lua file in the Neovim cache directory and write debugging logs to
+it.
+
+Previously, the `dev` option was used for debugging and assigning new
+highlights to the theme, or for overriding defined highlights. Now, with the
+removal of the `dev` option, you can override any highlight without enabling
+any option.
+
+
+
                                                         *github-theme.changelog-23042023*
 Date: April 23, 2023
 
diff --git a/doc/gt_deprecated.txt b/doc/gt_deprecated.txt
index f0542d8b..4cb133b8 100644
--- a/doc/gt_deprecated.txt
+++ b/doc/gt_deprecated.txt
@@ -33,6 +33,7 @@ SETUP OPTIONS
 - *'sidebars'*				  Deprecated. Use |'options.darken.sidebars.list'| Instead.
 - *'colors'*				  Deprecated. Use |'specs'| and |'palettes'| Instead.
 - *'overrides'*				  Deprecated. Use |'groups'| Instead.
+- *'dev'*				  Deprecated. Use |'vim.g.github_theme_dev'| Instead.
 
 
 GLOBAL OPTIONS
@@ -50,7 +51,7 @@ GLOBAL OPTIONS
 - *'vim.g.github_function_style'*	  Use |setup| Lua function instead.
 - *'vim.g.github_keyword_style'*	  Use |setup| Lua function instead.
 - *'vim.g.github_variable_style'*	  Use |setup| Lua function instead.
-- *'vim.g.github_dev'*			  Use |setup| Lua function instead.
+- *'vim.g.github_dev'*			  Use |vim.g.github_theme_debug| instead.
 
 
 MODULES
diff --git a/lua/github-theme/config.lua b/lua/github-theme/config.lua
index 7e23dc3e..38fd9cfd 100644
--- a/lua/github-theme/config.lua
+++ b/lua/github-theme/config.lua
@@ -1,13 +1,15 @@
 local collect = require('github-theme.lib.collect')
 local util = require('github-theme.util')
 
-local M = { theme = 'github_dark', has_options = true }
+local M = { theme = 'github_dark', has_options = false }
 
 local defaults = {
-  dev = false,
-  transparent = false,
+  compile_file_suffix = '_compiled',
+  compile_path = util.join_paths(util.cache_home, 'github-theme'),
   hide_end_of_buffer = true,
   hide_nc_statusline = true,
+  terminal_colors = true,
+  transparent = false,
   module_default = true,
   styles = {
     comments = 'italic',
@@ -85,4 +87,16 @@ function M.reset()
   M.options = collect.deep_copy(defaults)
 end
 
+function M.get_compiled_info(opts)
+  local output_path = opts.output_path or M.options.compile_path
+  local file_suffix = opts.file_suffix or M.options.compile_file_suffix
+  local style = opts.name or M.theme
+  return output_path, util.join_paths(output_path, style .. file_suffix)
+end
+
+function M.hash()
+  local hash = require('github-theme.lib.hash')(M.options)
+  return hash and hash or 0
+end
+
 return M
diff --git a/lua/github-theme/init.lua b/lua/github-theme/init.lua
index 75103910..d1fd1887 100644
--- a/lua/github-theme/init.lua
+++ b/lua/github-theme/init.lua
@@ -1,19 +1,44 @@
-local M = {}
-
 local config = require('github-theme.config')
-local highlight = require('github-theme.lib.highlight').highlight
-local dep = require('github-theme.util.deprecation')
 
-local did_setup = false
+local function read_file(filepath)
+  local file = io.open(filepath, 'r')
+  if file then
+    local content = file:read()
+    file:close()
+    return content
+  end
+end
+
+local function write_file(filepath, content)
+  local file = io.open(filepath, 'wb')
+  if file then
+    file:write(content)
+    file:close()
+  end
+end
+
+local M = {}
 
 function M.reset()
   require('github-theme.config').reset()
+  require('github-theme.override').reset()
+end
+
+function M.compile()
+  require('github-theme.lib.log').clear()
+
+  local compiler = require('github-theme.lib.compiler')
+  local themes = require('github-theme.palette').themes
+  for _, style in ipairs(themes) do
+    compiler.compile({ style = style })
+  end
 end
 
 -- Avoid g:colors_name reloading
 local lock = false
+local did_setup = false
 
-M.load = function(opts)
+function M.load(opts)
   if lock then
     return
   end
@@ -22,21 +47,19 @@ M.load = function(opts)
     M.setup()
   end
 
-  lock = true
+  opts = opts or {}
 
-  local spec = require('github-theme.spec').load(config.theme)
-  local groups = require('github-theme.group').from(spec)
-  local background = spec.palette.meta.light and 'light' or 'dark'
+  local _, compiled_file = config.get_compiled_info(opts)
+  lock = true
 
-  if vim.g.colors_name then
-    vim.cmd('hi clear')
+  local f = loadfile(compiled_file)
+  if not f then
+    M.compile()
+    f = loadfile(compiled_file)
   end
-  vim.o.termguicolors = true
-  vim.g.colors_name = config.theme
-  vim.o.background = background
 
-  highlight(groups)
-  require('github-theme.autocmds').set()
+  ---@diagnostic disable-next-line: need-check-nil
+  f()
 
   lock = false
 end
@@ -47,12 +70,6 @@ M.setup = function(opts)
 
   local override = require('github-theme.override')
 
-  -- TODO: Remove these individual conditions when migration
-  -- from old config to 'opts.options' has been DONE.
-  if opts.dev then
-    config.set_options({ dev = opts.dev })
-  end
-
   -- New configs
   if opts.options then
     config.set_options(opts.options)
@@ -70,7 +87,22 @@ M.setup = function(opts)
     override.groups = opts.groups
   end
 
-  dep.check_deprecation(opts)
+  local util = require('github-theme.util')
+  util.ensure_dir(config.options.compile_path)
+
+  local cached_path = util.join_paths(config.options.compile_path, 'cache')
+  local cached = read_file(cached_path)
+
+  local git_path = util.join_paths(debug.getinfo(1).source:sub(2, -23), '.git')
+  local git = vim.fn.getftime(git_path)
+  local hash = require('github-theme.lib.hash')(opts) .. (git == -1 and git_path or git)
+
+  if cached ~= hash then
+    M.compile()
+    write_file(cached_path, hash)
+  end
+
+  require('github-theme.util.deprecation').check_deprecation(opts)
 end
 
 return M
diff --git a/lua/github-theme/lib/compiler.lua b/lua/github-theme/lib/compiler.lua
new file mode 100644
index 00000000..03d303fc
--- /dev/null
+++ b/lua/github-theme/lib/compiler.lua
@@ -0,0 +1,106 @@
+---@diagnostic disable: need-check-nil
+
+local config = require('github-theme.config')
+local util = require('github-theme.util')
+local parse_styles = require('github-theme.lib.highlight').parse_style
+local fmt = string.format
+
+local M = {}
+
+local function inspect(t)
+  local list = {}
+  for k, v in pairs(t) do
+    local q = type(v) == 'string' and [["]] or ''
+    table.insert(list, fmt([[%s = %s%s%s]], k, q, v, q))
+  end
+
+  table.sort(list)
+  return fmt([[{ %s }]], table.concat(list, ', '))
+end
+
+local function should_link(link)
+  return link and link ~= ''
+end
+
+function M.compile(opts)
+  opts = opts or {}
+  local theme = config.theme
+  local spec = require('github-theme.spec').load(theme)
+  local groups = require('github-theme.group').from(spec)
+  local background = spec.palette.meta.light and 'light' or 'dark'
+
+  local lines = {
+    fmt(
+      [[
+return string.dump(function()
+local h = vim.api.nvim_set_hl
+if vim.g.colors_name then vim.cmd("hi clear") end
+vim.o.termguicolors = true
+vim.g.colors_name = "%s"
+vim.o.background = "%s"
+    ]],
+      theme,
+      background
+    ),
+  }
+
+  if config.options.terminal_colors then
+    local terminal = require('github-theme.group.terminal').get(spec)
+    for k, v in pairs(terminal) do
+      table.insert(lines, fmt([[vim.g.%s = "%s"]], k, v))
+    end
+  end
+
+  for name, values in pairs(groups) do
+    if should_link(values.link) then
+      table.insert(lines, fmt([[h(0, "%s", { link = "%s" })]], name, values.link))
+    else
+      local op = parse_styles(values.style)
+      op.bg = values.bg
+      op.fg = values.fg
+      op.sp = values.sp
+      table.insert(lines, fmt([[h(0, "%s", %s)]], name, inspect(op)))
+    end
+  end
+
+  table.insert(lines, 'end)')
+
+  opts.name = theme
+  local output_path, output_file = config.get_compiled_info(opts)
+  util.ensure_dir(output_path)
+
+  local file
+  if vim.g.github_theme_debug then
+    file = io.open(output_file .. '.lua', 'wb')
+    file:write(table.concat(lines, '\n'))
+    file:close()
+  end
+
+  file = io.open(output_file, 'wb')
+
+  local f = loadstring(table.concat(lines, '\n'), '=')
+  if not f then
+    local tmpfile = util.join_paths(util.get_tmp_dir(), 'github_theme_error.lua')
+    require('github-theme.lib.log').error(
+      fmt(
+        [[There is an error in your github-theme config.
+You can open '%s' for debugging.
+
+If you think this is a bug, kindly open an issue and attach '%s' file.
+Bellow is the error message:
+]],
+        tmpfile,
+        tmpfile
+      )
+    )
+    local efile = io.open(tmpfile, 'wb')
+    efile:write(table.concat(lines, '\n'))
+    efile:close()
+    dofile(tmpfile)
+  end
+
+  file:write(f())
+  file:close()
+end
+
+return M
diff --git a/lua/github-theme/lib/hash.lua b/lua/github-theme/lib/hash.lua
new file mode 100644
index 00000000..2115db1e
--- /dev/null
+++ b/lua/github-theme/lib/hash.lua
@@ -0,0 +1,27 @@
+local bitop = bit or bit32 or require('github-theme.lib.native_bit')
+
+-- https://theartincode.stanis.me/008-djb2/
+local function djb2(s)
+  local h = 5381
+  for i = 1, #s do
+    h = bitop.lshift(h, 5) + h + string.byte(s, i) -- h * 33 + c
+  end
+  return h
+end
+
+-- Reference: https://github.com/catppuccin/nvim/blob/bad9c23f12944683cd11484d9570560849efc101/lua/catppuccin/lib/hashing.lua
+local function hash(x)
+  local t = type(x)
+  if t == 'table' then
+    local h = 0
+    for k, v in next, x do
+      h = bitop.bxor(h, djb2(k .. hash(v)))
+    end
+    return h
+  elseif t == 'function' then
+    return djb2(string.dump(x))
+  end
+  return tostring(x)
+end
+
+return hash
diff --git a/lua/github-theme/lib/log.lua b/lua/github-theme/lib/log.lua
index e8aa19da..248ac34a 100644
--- a/lua/github-theme/lib/log.lua
+++ b/lua/github-theme/lib/log.lua
@@ -27,7 +27,7 @@ function M.notify(msg, level)
         local buf = vim.api.nvim_win_get_buf(win)
         vim.bo[buf].filetype = 'markdown'
       end,
-      title = 'nightfox.nvim',
+      title = 'github-theme',
     })
 
     notified[msg] = true
diff --git a/lua/github-theme/lib/native_bit.lua b/lua/github-theme/lib/native_bit.lua
new file mode 100644
index 00000000..4f917335
--- /dev/null
+++ b/lua/github-theme/lib/native_bit.lua
@@ -0,0 +1,130 @@
+-- Reference(stripped down): https://github.com/davidm/lua-bit-numberlua/blob/master/lmod/bit/numberlua.lua
+
+local floor = math.floor
+
+local MOD = 2 ^ 32
+local MODM = MOD - 1
+
+local function memoize(f)
+  local mt = {}
+  local t = setmetatable({}, mt)
+  function mt:__index(k)
+    local v = f(k)
+    t[k] = v
+    return v
+  end
+  return t
+end
+
+local function make_bitop_uncached(t, m)
+  local function bitop(a, b)
+    local res, p = 0, 1
+    while a ~= 0 and b ~= 0 do
+      local am, bm = a % m, b % m
+      res = res + t[am][bm] * p
+      a = (a - am) / m
+      b = (b - bm) / m
+      p = p * m
+    end
+    res = res + (a + b) * p
+    return res
+  end
+  return bitop
+end
+
+local function make_bitop(t)
+  local op1 = make_bitop_uncached(t, 2 ^ 1)
+  local op2 = memoize(function(a)
+    return memoize(function(b)
+      return op1(a, b)
+    end)
+  end)
+  return make_bitop_uncached(op2, 2 ^ (t.n or 1))
+end
+
+local bxor = make_bitop({ [0] = { [0] = 0, [1] = 1 }, [1] = { [0] = 1, [1] = 0 }, n = 4 })
+
+local function bnot(a)
+  return MODM - a
+end
+
+local function band(a, b)
+  return ((a + b) - bxor(a, b)) / 2
+end
+
+local function bor(a, b)
+  return MODM - band(MODM - a, MODM - b)
+end
+
+local lshift, rshift -- forward declare
+
+rshift = function(a, disp) -- Lua5.2 insipred
+  if disp < 0 then
+    return lshift(a, -disp)
+  end
+  return floor(a % 2 ^ 32 / 2 ^ disp)
+end
+
+lshift = function(a, disp) -- Lua5.2 inspired
+  if disp < 0 then
+    return rshift(a, -disp)
+  end
+  return (a * 2 ^ disp) % 2 ^ 32
+end
+
+local function bit_tobit(x)
+  x = x % MOD
+  if x >= 0x80000000 then
+    x = x - MOD
+  end
+  return x
+end
+
+local function bit_not(x)
+  return bit_tobit(bnot(x % MOD))
+end
+
+local function bit_bor(a, b, c, ...)
+  if c then
+    return bit_bor(bit_bor(a, b), c, ...)
+  elseif b then
+    return bit_tobit(bor(a % MOD, b % MOD))
+  else
+    return bit_tobit(a)
+  end
+end
+
+local function bit_band(a, b, c, ...)
+  if c then
+    return bit_band(bit_band(a, b), c, ...)
+  elseif b then
+    return bit_tobit(band(a % MOD, b % MOD))
+  else
+    return bit_tobit(a)
+  end
+end
+
+local function bit_bxor(a, b, c, ...)
+  if c then
+    return bit_bxor(bit_bxor(a, b), c, ...)
+  elseif b then
+    return bit_tobit(bxor(a % MOD, b % MOD))
+  else
+    return bit_tobit(a)
+  end
+end
+
+return {
+  lshift = function(x, n)
+    return bit_tobit(lshift(x % MOD, n % 32))
+  end,
+
+  rshift = function(x, n)
+    return bit_tobit(rshift(x % MOD, n % 32))
+  end,
+
+  bnot = bit_not,
+  band = bit_band,
+  bor = bit_bor,
+  bxor = bit_bxor,
+}
diff --git a/lua/github-theme/util/deprecation.lua b/lua/github-theme/util/deprecation.lua
index 0edc1cc2..6365c08e 100644
--- a/lua/github-theme/util/deprecation.lua
+++ b/lua/github-theme/util/deprecation.lua
@@ -67,7 +67,7 @@ M.check_deprecation = function(opts)
       dep.write(
         '  ',
         { name, 'WarningMsg' },
-        ' has been replaced by ',
+        ' config has been replaced by ',
         { replace, 'WarningMsg' },
         '. See ',
         { ':h ' .. help, 'WarningMsg' },
@@ -123,10 +123,14 @@ M.check_deprecation = function(opts)
     replace = 'options.darken.sidebars.enable',
     help = 'github-theme.changelog-13042023',
   })
-  check_opt(
-    'sidebars',
-    { replace = 'options.darken.sidebars.list', help = 'github-theme.changelog-13042023' }
-  )
+  check_opt('sidebars', {
+    replace = 'options.darken.sidebars.list',
+    help = 'github-theme.changelog-13042023',
+  })
+  check_opt('dev', {
+    replace = 'vim.g.github_theme_debug',
+    help = 'github-theme.changelog-06052023',
+  })
 
   if opts.colors then
     dep.write(
diff --git a/lua/github-theme/util/reload.lua b/lua/github-theme/util/reload.lua
new file mode 100644
index 00000000..df496a59
--- /dev/null
+++ b/lua/github-theme/util/reload.lua
@@ -0,0 +1,19 @@
+local function reload()
+  for name, _ in pairs(package.loaded) do
+    if name:match('^github-theme') then
+      if
+        not name:match('config')
+        and not name:match('deprecation')
+        and not name:match('override')
+      then
+        package.loaded[name] = nil
+      end
+    end
+  end
+end
+
+return setmetatable({}, {
+  __call = function(_)
+    reload()
+  end,
+})