Currently, the mod feels a little too "tech-y" for my likes and for the general feel. One step is to make the Restructurer less like a Furnace and more something that could appear in a primordial dimension.

Aesthetic

Scrap the Cube design and have a more unique shape to it. This shape would resemble some sort of alchemist table or anything engraved, keeping in mind the recipe used to craft it. For the GUI, have the input in the middle, Output and Byproduct at the bottom, and a ring for the items.

Recipes

Still contains the Output-Byproduct result and regular Input item, however powering it should be a little different. Since the purpose of the Restructurer is to take a gem and change the properties, it will need some sort of fuel and also "magic stuff" to do some transforming.

Powering

External power sources are undesired. Perhaps have a Resonator item (refer to Biome Plan issue) or a modified version of the resonator (might not be ideal) and each recipe removes 1 durability point. Perhaps make use of the Sweet Muck items/blocks/fluid? Perhaps also keep the Shining slot and even the Gold Slot?

Upgrade

By attaching an upgrade to the side of the block, the Restructurer gains the ability to merge two items to make a new item. This can be to create new unique items or hard-to-obtain items.

New ideas to use instead:

• Scrap having a new fuel source. Instead, keep it as it is, but include a tooltip when hovering over an empty fuel slot for a hint on what can be inserted into which slot. This can be toggled with a client config option in the event the player already gets it.
• Scrap any sort of Powering, at least for the base Restructurer.
• Scrap Restructurer being able to merge Gemstones together. This will be repurposed into a new Tile Entity.
• Repurpose some of the ideas for an Auto-Restructurer. This accepts no fuel, however it will require an incredibly rare item, or it accepts fuel but does not require scavenging for new resources often. If the latter, there will be a rechargeable item that can be used in it.