diff --git a/scripts/mods/dml/class.lua b/scripts/mods/dml/class.lua
deleted file mode 100644
index 53896de..0000000
--- a/scripts/mods/dml/class.lua
+++ /dev/null
@@ -1,26 +0,0 @@
-local original_class = Mods.original_class or class
-Mods.original_class = original_class
-
-local _G = _G
-local rawget = rawget
-local rawset = rawset
-
--- The `__index` metamethod maps a proper identifier `CLASS.MyClassName` to the
--- stringified version of the key: `"MyClassName"`.
--- This allows using LuaCheck for the stringified class names in hook parameters.
-_G.CLASS = _G.CLASS or setmetatable({}, {
-    __index = function(_, key)
-        return key
-    end
-})
-
-class = function(class_name, super_name, ...)
-    local result = original_class(class_name, super_name, ...)
-    if not rawget(_G, class_name) then
-        rawset(_G, class_name, result)
-    end
-    if not rawget(_G.CLASS, class_name) then
-        rawset(_G.CLASS, class_name, result)
-    end
-    return result
-end
diff --git a/scripts/mods/dml/init.lua b/scripts/mods/dml/init.lua
index f455539..21a16a6 100644
--- a/scripts/mods/dml/init.lua
+++ b/scripts/mods/dml/init.lua
@@ -1,3 +1,6 @@
+dofile("scripts/mods/dml/message")
+dofile("scripts/mods/dml/hook")
+
 local StateGame = require("scripts/game_states/state_game")
 local StateSplash = require("scripts/game_states/game/state_splash")
 local GameStateMachine = require("scripts/foundation/utilities/game_state_machine")
@@ -6,20 +9,9 @@ local GameStateMachine = require("scripts/foundation/utilities/game_state_machin
 -- to initialize the modding environment.
 local loader = {}
 
-Mods = {}
-
-function loader:init(mod_data, libs, boot_gui)
-    -- The metatable prevents overwriting these
-    self._libs = setmetatable({}, { __index = libs })
-    Mods.lua = self._libs
-
-    dofile("scripts/mods/dml/message")
-    dofile("scripts/mods/dml/require")
-    dofile("scripts/mods/dml/class")
-    dofile("scripts/mods/dml/hook")
-
+function loader:init(mod_data, boot_gui)
     local ModLoader = dofile("scripts/mods/dml/mod_loader")
-    local mod_loader = ModLoader:new(mod_data, libs, boot_gui)
+    local mod_loader = ModLoader:new(mod_data, boot_gui)
     self._mod_loader = mod_loader
     Managers.mod = mod_loader
 
diff --git a/scripts/mods/dml/mod_loader.lua b/scripts/mods/dml/mod_loader.lua
index bb35d77..d2e5b16 100644
--- a/scripts/mods/dml/mod_loader.lua
+++ b/scripts/mods/dml/mod_loader.lua
@@ -26,10 +26,10 @@ local BUTTON_INDEX_R = Keyboard.button_index("r")
 local BUTTON_INDEX_LEFT_SHIFT = Keyboard.button_index("left shift")
 local BUTTON_INDEX_LEFT_CTRL = Keyboard.button_index("left ctrl")
 
-ModLoader.init = function(self, mod_data, libs, boot_gui)
+ModLoader.init = function(self, mod_data, boot_gui)
     table.dump(mod_data, nil, 5, function(...) Log.info("ModLoader", ...) end)
+
     self._mod_data = mod_data
-    self._libs = libs
     self._gui = boot_gui
 
     self._settings = Application.user_setting("mod_settings") or DEFAULT_SETTINGS
@@ -142,7 +142,7 @@ ModLoader.update = function(self, dt)
 
             if next_index > #mod_data.packages then
                 mod.state = "running"
-                local ok, object = xpcall(mod_data.run, self._libs.debug.traceback)
+                local ok, object = xpcall(mod_data.run, Script.callstack)
 
                 if not ok then
                     Log.error("ModLoader", "Failed 'run' for %q: %s", mod.name, object)
@@ -198,7 +198,7 @@ ModLoader._run_callback = function (self, mod, callback_name, ...)
 
     local args = table_pack(...)
 
-    local success, val = xpcall(function() return cb(object, table_unpack(args)) end, self._libs.debug.traceback)
+    local success, val = xpcall(function() return cb(object, table_unpack(args)) end, Script.callstack)
 
     if success then
         return val
diff --git a/scripts/mods/dml/require.lua b/scripts/mods/dml/require.lua
deleted file mode 100644
index bc808a9..0000000
--- a/scripts/mods/dml/require.lua
+++ /dev/null
@@ -1,36 +0,0 @@
-local require_store = Mods.require_store or {}
-Mods.require_store = require_store
-
-local original_require = Mods.original_require or require
-Mods.original_require = original_require
-
-local can_insert = function(filepath, new_result)
-    local store = require_store[filepath]
-    if not store or #store then
-        return true
-    end
-
-    if store[#store] ~= new_result then
-        return true
-    end
-end
-
-require = function(filepath, ...)
-    local result = original_require(filepath, ...)
-    if result and type(result) == "table" then
-        if can_insert(filepath, result) then
-            require_store[filepath] = require_store[filepath] or {}
-            local store = require_store[filepath]
-
-            table.insert(store, result)
-
-            --print("[Require] #" .. tostring(#store) .. " of " .. filepath)
-            local Mods = Mods
-            if Mods.hook then
-                Mods.hook.enable_by_file(filepath, #store)
-            end
-        end
-    end
-
-    return result
-end