init.lua

 -- Minetest Mod
 
-minetest.register_node("cltmod:tux", {
-    description = "CLT-Tux",
-    tiles = {"cltmod_tux.png"},
+minetest.register_node("penguins:tux", {
+    description = "Tux",
+    tiles = {"penguins_tux.png"},
     groups = {cracky = 1}
 })
 
 minetest.register_craft({
     type = "shaped",
-    output = "cltmod:tux 1",
+    output = "penguins:tux 1",
     recipe = {
         {"",                        "default:goldblock",       ""                       },
         {"default:obsidian",        "default:steelblock",      "default:obsidian"       },

mod.conf

+name = penguins
+title = Pinguine
+description = Mod-Anleitung mit Pinguinen
+release = 0.1
+author = magicfelix, Pingu, Tuxilio