Use data stores for code storage. See readme on setting up multiple systems

README.md

@@ -4,3 +4,8 @@
 - [ ] Make installation instructions
 - [ ] Alarm reporting Roblox-Side script
 - [ ] More detailed Readme
+- [X] Use datastores for code storage
+
+## Having multiple separate systems
+To put it simply, you just need to set the `dataStoreKey` string to *anything you want*
+If you want systems to share codes, use the same dataStoreKey (This is not supported, and may cause issues.)

Scripts/SecuritySystem.lua

@@ -1,9 +1,16 @@
+local DataStoreService = game:GetService("DataStoreService")
+local dataStore = DataStoreService:GetDataStore('securityCodes-' .. script.Parent.dataStoreKey.Value or "XP-99")
+
 function setup(parentScript)
 	-- dont touch
-	version = "v1.0.1"
+	version = "v1.2.0"
 
 	-- codes object, will be swapped for data store later
+	codes = dataStore:GetAsync("codes")
+	if not codes then
 		codes = {"1234"}
+		dataStore:SetAsync("codes", codes)
+	end
 
 	-- Make a settings object mapped to the values in parentScript.Parent.Settings
 	settings = {}
@@ -343,6 +350,7 @@ delay
 					return
 				else
 					codes[tonumber(uid)] = nil
+					dataStore:SetAsync("codes", codes)
 					ding(1)
 				end
 				deauth()
@@ -354,6 +362,7 @@ delay
 					if newCode == newCodeVerify then
 						if not table.find(codes, newCode) then
 							codes[tonumber(uid)] = newCode
+							dataStore:SetAsync("codes", codes)
 							ding(1)
 						else
 							ding(4)