diff --git a/DEVELOPERS.md b/DEVELOPERS.md
index 1bbbbd8..bcf1773 100644
--- a/DEVELOPERS.md
+++ b/DEVELOPERS.md
@@ -9,13 +9,12 @@ The tutorial castle is saved in the game itself in schematics and other binary m
 ### Summary
 
 1. If Luanti is running, shut it down
-2. Trust the code. In the settings menu or `minetest.conf`, add `tutorial_mapgen` to `secure.trusted_mods`
-3. In `minetest.conf`, add `tutorial_debug_map_editing = true`
-4. In `minetest.conf`, add `tutorial_debug_edit_item_spawners = true`
-5. Start Luanti and create a new world and enter the world in singleplayer (there should be a confirmation message in chat)
-6. Edit the map to your likings
-7. Grant yourselves the `tutorialmap` privilege
-8. Use `/tsave` command to save the map
+2. In `minetest.conf`, add `tutorial_debug_map_editing = true`
+3. In `minetest.conf`, add `tutorial_debug_edit_item_spawners = true`
+4. Start Luanti and create a new world and enter the world in singleplayer (there should be a confirmation message in chat)
+5. Edit the map to your likings
+6. Grant yourselves the `tutorialmap` privilege
+7. Use `/tsave` command to save the map
 
 Note: `tutorial_debug_map_editing=true` will automatically enable Creative Mode.
 
@@ -23,12 +22,6 @@ The changes will end up in `<world directory>/mapdata`. Copy this directory to `
 
 If you want to edit item spawn positions, see the details below.
 
-### Mod security
-First, you need to list `tutorial_mapgen` as a trusted mod because the `/tsave` command needs write access.
-You can review the relevant code in `mods/tutorial_mapgen/init.lua`.
-
-Use the setting `secure.trusted_mods` to edit the list of trusted mods.
-
 ### Editing the map
 You want to only edit the map data files. Here's how:
 
@@ -57,5 +50,3 @@ If you mess with item spawners, the setting `tutorial_debug_edit_item_spawners`
 
 ### Testing and finalizing
 To test your new map, remove the 2 `minetest.conf` settings and create a new world and check if everything works. If it does work, you can commit your changes now.
-
-(Note: The `/tsave` command is not available if the `tutorial_mapgen` mod failed to request an "insecure" environment due to mod security issues.)
diff --git a/mods/tutorial_mapgen/init.lua b/mods/tutorial_mapgen/init.lua
index 8765bf9..091ed3d 100644
--- a/mods/tutorial_mapgen/init.lua
+++ b/mods/tutorial_mapgen/init.lua
@@ -5,7 +5,6 @@
 -- the raw castle, no grass layer or other random decorations will be generated.
 -- Also, 2 commands to manage the schematic will be available:
 -- /treset and /tsave commands will be available.
--- (/tsave only if tutorial is trusted mod)
 local map_editing = minetest.settings:get_bool("tutorial_debug_map_editing")
 
 -- == END OF DEBUG SETTINGS ==
@@ -18,8 +17,6 @@ local c_grass = minetest.get_content_id("tutorial_default:grass_5")
 tutorial.map_directory = minetest.get_modpath("tutorial_mapgen").."/mapdata/"
 tutorial.map_save_directory = minetest.get_worldpath().."/mapdata/"
 
-local insecure_environment = minetest.request_insecure_environment()
-
 -- entity management functions
 
 local function init_item_spawners(spawners)
@@ -146,7 +143,7 @@ local function save_region(minp, maxp, probability_list, filename, slice_prob_li
 		-- Serialize entries
 		result = minetest.serialize(result)
 
-		local file, err = insecure_environment.io.open(filename..".meta", "wb")
+		local file, err = io.open(filename..".meta", "wb")
 		if err ~= nil then
 			error("Couldn't write to \"" .. filename .. "\"")
 		end
@@ -305,24 +302,17 @@ if map_editing then
 		end,
 	})
 
-	-- Add commands for saving map and entities, but only if tutorial mod is trusted
-	if insecure_environment then
-		minetest.register_chatcommand("tsave", {
-			params = "",
-			description = "Saves the tutorial map",
-			privs = {tutorialmap=true},
-			func = function(name, param)
-				if not save_schematic() then
-					minetest.chat_send_player(name, "An error occurred while saving Tutorial World schematic")
-				end
-			end,
-		})
-	else
-		minetest.log("warning", "Could not create insecure environment! /tsave command is disabled.")
-		minetest.register_on_joinplayer(function(player)
-			minetest.chat_send_player(player:get_player_name(), "Could not create insecure environment! /tsave command is not available.")
-		end)
-	end
+	-- Add commands for saving map and entities
+	minetest.register_chatcommand("tsave", {
+		params = "",
+		description = "Saves the tutorial map",
+		privs = {tutorialmap=true},
+		func = function(name, param)
+			if not save_schematic() then
+				minetest.chat_send_player(name, "An error occurred while saving Tutorial World schematic")
+			end
+		end,
+	})
 end
 
 ------ Map Generation