Backstube

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

Evidence

Ran on Kiln's test stand (2026-11-04): it stopped at com.jahirtrap.configlib.TXFConfig, a class from a jar nested inside the mod; Kiln does not unpack nested jars yet.

What it needs from Kiln

an access widener
Mixin
net.fabricmc.fabric.api.event.registry.DynamicRegistries
net.fabricmc.fabric.api.event.registry.DynamicRegistries.SyncOption
net.minecraft.core.HolderLookup.RegistryLookup
net.minecraft.core.component.DataComponentInitializers
net.minecraft.core.component.DataComponentInitializers.SingleComponentInitializer
net.minecraft.core.component.DataComponentType
net.minecraft.core.component.DataComponentType.Builder
net.minecraft.core.component.DataComponents
net.minecraft.core.registries.codec.RegistryFixedCodec
net.minecraft.network.RegistryFriendlyByteBuf
net.minecraft.network.chat.ComponentSerialization
net.minecraft.network.codec.ByteBufCodecs
net.minecraft.network.codec.StreamCodec
net.minecraft.resources.FileToIdConverter
net.minecraft.server.packs.PackResources
net.minecraft.server.packs.resources.Resource
net.minecraft.util.ExtraCodecs
net.minecraft.util.Mth
net.minecraft.world.item.CreativeModeTab.Builder
net.minecraft.world.item.CreativeModeTab.DisplayItemsGenerator
net.minecraft.world.item.CreativeModeTab.ItemDisplayParameters
net.minecraft.world.item.CreativeModeTab.Output
net.minecraft.world.item.CreativeModeTab.Row
net.minecraft.world.item.JukeboxPlayable
HolderLookup.listElements()
HolderLookup.Provider.getOrThrow()
HolderLookup.Provider.lookup()
BuiltInRegistries.CREATIVE_MODE_TAB
BuiltInRegistries.DATA_COMPONENT_TYPE
Registries.JUKEBOX_SONG
Identifier.CODEC
Identifier.STREAM_CODEC
CreativeModeTab.builder()
Item.Properties.delayedComponent()
Item.Properties.jukeboxPlayable()
ItemStack.get()
ItemStack.has()
ItemStack.set()
Rarity.CODEC
Rarity.STREAM_CODEC

On the roadmap: Code next to data (0.3), Mixin (0.5)

In the author's words

Bake your own music discs

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file backstube-26.3-0.1.4-fabric.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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