Simple Pocket Machines

Evidence

Ran on Kiln's test stand (2026-11-04): PocketMachinesFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/world/MenuProvider; PocketMachinesFabricClient did not start: java.lang.NoSuchFieldError: Class net.minecraft.core.registries.BuiltInRegistries does not have member field 'net.minecraft.core.Registry MENU'.

What it needs from Kiln

• an access widener
• Mixin
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLevelEvents
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLevelEvents.Load
• net.fabricmc.fabric.api.event.lifecycle.v1.ServerLevelEvents.Unload
• net.minecraft.client.gui.screens.MenuScreens
• net.minecraft.client.gui.screens.MenuScreens.ScreenConstructor
• net.minecraft.client.gui.screens.inventory.AbstractFurnaceScreen
• net.minecraft.client.gui.screens.inventory.ContainerScreen
• net.minecraft.client.gui.screens.recipebook.RecipeBookComponent
• net.minecraft.client.gui.screens.recipebook.RecipeBookComponent.TabInfo
• net.minecraft.client.gui.screens.recipebook.SearchRecipeBookCategory
• net.minecraft.core.NonNullList
• net.minecraft.core.component.DataComponents
• net.minecraft.nbt.CompoundTag
• net.minecraft.nbt.ListTag
• net.minecraft.nbt.NbtOps
• net.minecraft.nbt.Tag
• net.minecraft.server.MinecraftServer
• net.minecraft.stats.Stats
• net.minecraft.util.Mth
• net.minecraft.util.ProblemReporter
• net.minecraft.util.ProblemReporter.Collector
• net.minecraft.util.context.ContextKey
• net.minecraft.world.ContainerHelper
• net.minecraft.world.Containers
• net.minecraft.world.MenuProvider
• net.minecraft.world.SimpleContainer
• net.minecraft.world.SimpleMenuProvider
• net.minecraft.world.entity.ExperienceOrb
• net.minecraft.world.flag.FeatureFlags
• net.minecraft.world.inventory.AbstractFurnaceMenu
• net.minecraft.world.inventory.AnvilMenu
• net.minecraft.world.inventory.BrewingStandMenu
• net.minecraft.world.inventory.CartographyTableMenu
• net.minecraft.world.inventory.ChestMenu
• net.minecraft.world.inventory.ContainerData
• net.minecraft.world.inventory.ContainerLevelAccess
• net.minecraft.world.inventory.CraftingMenu
• net.minecraft.world.inventory.EnchantmentMenu
• net.minecraft.world.inventory.GrindstoneMenu
• net.minecraft.world.inventory.LoomMenu
• and 57 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

Simple, portable vanilla machines

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file SimplePocketMachines-Fabric-26.3-1.0.4.jar. The scan reads the mod's classes; it does not run them.