Hopper Gadgetry

Evidence

Ran on Kiln's test stand (2026-11-04): HopperGadgetryFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/util/thread/BlockableEventLoop; HopperGadgetryFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/entity/EntityRenderer.

What it needs from Kiln

• an access widener
• Mixin
• net.minecraft.client.gui.screens.MenuScreens
• net.minecraft.client.gui.screens.MenuScreens.ScreenConstructor
• net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
• net.minecraft.client.model.object.cart.MinecartModel
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.client.renderer.entity.EntityRendererProvider
• net.minecraft.client.renderer.entity.EntityRendererProvider.Context
• net.minecraft.client.renderer.entity.MinecartRenderer
• net.minecraft.core.NonNullList
• net.minecraft.world.Container
• net.minecraft.world.Containers
• net.minecraft.world.ItemStackWithSlot
• net.minecraft.world.SimpleContainer
• net.minecraft.world.WorldlyContainer
• net.minecraft.world.entity.Entity.RemovalReason
• net.minecraft.world.entity.EntitySelector
• net.minecraft.world.entity.EntityType
• net.minecraft.world.entity.EntityType.Builder
• net.minecraft.world.entity.EntityType.EntityFactory
• net.minecraft.world.entity.MobCategory
• net.minecraft.world.entity.item.ItemEntity
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.entity.vehicle.minecart.MinecartHopper
• net.minecraft.world.inventory.AbstractContainerMenu
• net.minecraft.world.inventory.MenuType
• net.minecraft.world.inventory.MenuType.MenuSupplier
• net.minecraft.world.inventory.Slot
• net.minecraft.world.item.MinecartItem
• net.minecraft.world.level.block.BaseEntityBlock
• net.minecraft.world.level.block.HopperBlock
• net.minecraft.world.level.block.Mirror
• net.minecraft.world.level.block.PipeBlock
• net.minecraft.world.level.block.RenderShape
• net.minecraft.world.level.block.Rotation
• net.minecraft.world.level.block.entity.BlockEntityType
• net.minecraft.world.level.block.entity.Hopper
• net.minecraft.world.level.block.entity.HopperBlockEntity
• net.minecraft.world.level.block.state.properties.NoteBlockInstrument
• net.minecraft.world.level.gamerules.GameRules
• net.minecraft.world.level.material.MapColor
• and 36 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Ready to build smarter, and cheaper contraptions? New hoppers are here to complement your lineup.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file hoppergadgetry-v26.3.0-mc26.3.x+fabric.jar. The scan reads the mod's classes; it does not run them.