yyz's backpack

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): Backpack did not start: java.lang.NoClassDefFoundError: net/minecraft/server/packs/resources/PreparableReloadListener; BackpackClient did not start: java.lang.NoClassDefFoundError: net/minecraft/server/packs/resources/PreparableReloadListener.

What it needs from Kiln

Mixin
com.mojang.blaze3d.platform.InputConstants.Key
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.Context
net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking.PlayPayloadHandler
net.fabricmc.fabric.api.creativetab.v1.FabricCreativeModeTab
net.fabricmc.fabric.api.networking.v1.PacketSender
net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Join
net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking
net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.Context
net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking.PlayPayloadHandler
net.fabricmc.fabric.api.resource.v1.ResourceLoader
net.minecraft.client.gui.components.AbstractSliderButton
net.minecraft.client.gui.components.Button
net.minecraft.client.gui.components.Button.Builder
net.minecraft.client.gui.components.Button.OnPress
net.minecraft.client.gui.components.EditBox
net.minecraft.client.gui.components.Renderable
net.minecraft.core.NonNullList
net.minecraft.core.RegistryAccess
net.minecraft.core.RegistryAccess.Frozen
net.minecraft.core.component.DataComponentType
net.minecraft.core.component.DataComponentType.Builder
net.minecraft.core.component.DataComponents
net.minecraft.nbt.CompoundTag
net.minecraft.nbt.NbtOps
net.minecraft.network.RegistryFriendlyByteBuf
net.minecraft.network.codec.ByteBufCodecs
net.minecraft.network.codec.StreamCodec
net.minecraft.network.protocol.common.custom.CustomPacketPayload
net.minecraft.network.protocol.common.custom.CustomPacketPayload.Type
net.minecraft.network.protocol.common.custom.CustomPacketPayload.TypeAndCodec
net.minecraft.resources.FileToIdConverter
net.minecraft.server.MinecraftServer
net.minecraft.server.network.ServerGamePacketListenerImpl
net.minecraft.server.packs.PackType
net.minecraft.server.packs.resources.SimpleJsonResourceReloadListener
net.minecraft.world.CompoundContainer
net.minecraft.world.Container
and 52 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

A new backpack mod may be more suitable for you.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file yyzsbackpack-0.0.11-reborn+26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

No reports from players yet.

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