This mod is not plug and play.

PermaGears lets you mark certain tools or items as unbreakable.
Everything is handled via 2 config files.

• You can configure the mod features and add unbreakable items through permagears.json
• To obtain the custom Fractured Sigil added by this mod, configure with permagears_advancements.
• Items with unbreakable tag cannot be destroyed in fire, cactus, lava, unless voided
• Items with unbreakable tag are also soulbound, not dropable (can be changed in the config)

You can make extra mods or any datapack to obtain the Fractured Sigil and use it to craft unbreakable item, as it is not obtainable within the mod unless you use the permagears_advancements to obtain it via advancements.