As you probably understood, this is the same add-on ItemAdder
What I did in this edition:

• Redrawn the GUI - now there is an inscription in Russian. Do not look at other green GUIs - I made the server GUIs like this, you will have them by default. If you are interested in how it looks like in general, you will find the Veles server in the search.
• Slightly changed the properties of items, made them not so "strong". Removed the ability to enchant for repair - amethysts are not so rare, easy to find, and so easy to get.
• And of course Russified everything.

•